I agree that we all must take responsibility for our actions.  Doc, I'm surprised at your short response.  Doesn't sound like you.  However, given the immense power and influence of 'public relations enhanced' advertising, magnified thru the almost totally pervasive media (mass and others), it has become more and more difficult for lone individuals to ignore the sirens' call.   The ants (individuals) in the 'free market place' have little chance to resist  the extremely well funded campaigns waged against them by the massive Giants in the 'free market' place.  These giant corporate behemoths have learned extremely effective propaganda, manipulation, and influencing techniques that 'bypass' the conscious attentiveness of most individuals.  Such scientifically based manipulation techniques would amaze Freud's brother (founder of the original 'Madison Ave mindset). His technological kin/descendents have taken manipulation via images, sounds, voice, etc., to an incredible degree of effectiveness. 

This same media is being used to systematically wage war on any competing organizations that might counter their profit making campaigns:  labor unions (ants attempting to get work together and get big enough to go 'toe to toe' with corporations); disparage 'big' government and push states rights, get everything done 'locally, 'get the gov't out of the way,' so no group ant-citizens (or political body) is big enough to challenge the giants.  Divide and conquer.  Yes, fat Americans are responsible for their choices.  Chinese people forced to use burning coal to heat their homes are responsible for the loss of 5 years off their life spans because they poison their home air with burning coal fumes.  Nothing happens in a vacuum, its all connected.  No, a gun was not put to the head of that 'consumer/profit center.'  But an army of savvy, full time advertisers, using techniques gleaned from 50 years of research by full time scientists, engineers, artists, and others, amplified by an almost 24 a day deluge did influence that individual.  Giants in the market place will continue to wage war on individuals. And a lone individual, unless a very exceptional person, stands little chance of shaking off all the influences of these giants. The blame belongs on a system that places short term profit above individual long term health.  Yes, Coca cola did not put a literal gun to the head of the obese person, so true.  But that giant corporatist behemoth, along with its co-conspirators, did place an info gun against that persons head, and its 'data' penetrated its target, in many cases, bypassing the target's conscious facilities.  Who is to blame?  How do we fix this?  Do we even have a right to interfere with the relationship between the giants and their ant size prey?  Do we want to interfere with with social Darwinism?  Should we let the giants consume the ants?

Elana, my response had to do with rejection of Kamamura_CZ's abrogation and negation of personal responsibility for acts. That and only that. I agree completely with Jafo that Coca Cola is extraneous to the OP. It was not my example. 

The youth in the OP did something dangerous and criminal. He did it, not his daddy, mommy or Sigmund Freud. 

The responsibility lies with him, not his school, not the foods in his diet, not his church, political party nor Zodiac sign.

"He chose...poorly.", as the line goes.

My answers are becoming more laconic as I "grow older".

Sure, what age? 3 year old yells it? 7? 11? 13? 16?

ok, I obviously dont know all the details of this story, but I do have to point out that if he got in trouble for quoting a singer from the concert he was in.... did they arrest Pink as well? how is it that the singer is allowed to say things he can't?

Now that I know he quoted a song lyric, I'm even more against this. It sounds like ignorance on the part of the security people.

However, your more recent post suggests this was outside the US. If that's the case, then I'll drop my arguments because I don't know the laws of other countries or have a sense of how to morally apply them.

Little slapper's wishful thinkin' there

They should´ve investigated a bit further on it, people like that must have deeper related problems ( if you have to tweet about something like this "to make a joke"- that isn’t anything in the sense of sane )

either his cojones must have been producing too much testosterone so that his brain switched to Flintstone mode that night while he wrote it or he´d suffer from deep mental issues that need to be treated ASAP.

But I guess he did get a beaten by security.

Kudos to the person that found that tweet.

Why I think so ? If a normal Human reaches the age of 12-16 it can predict good from right 
example throwing an object against another object that travels into your direction will cause a higher impact/force ( bigger hole greater damage than if the object your throwing at is standing still or moving away) 

If the person was not having 1,2 ‰  or higher in his bloodstream the brain should be able to calculate this subliminally
Just like you know that sticking your hand into a loaded rat trap will hurt.

If anyone did a prank on him using his "smartphone whatsoever" - he should really consider to search for new real friends.
One more thing Sith didn’t consider someone without a weapon as potential terrorist - look into the news / a weapon can be everything and knowledge is one of "our" greatest weapons. 

Rolo ...you clearly have missed the references.... but no, it wasn't a 'joke'...it was a badly worded moment of enthusiasm/anticipation.

There's no 'deeper related problems' other than a total lack of understanding of common sense...as to HOW A STATEMENT CAN BE INTERPRETED.

If he thought about it he would probably have gone "oops....that was bad choice of words"...but he's a 16 year old idiot without a grip on practical reality .... product of our times.

Jafo, I don't care about any of those other things you mentioned either; just like I'm sure you don't care about physics and calculus.

I'm not saying my stuff is better or that I've never heard of them... to each his own.

I'm sure I could've googled the city to figure out where it is, and I should have if I had thought it relevant. If there was only one Melbourne in the world, I probably would have.

I stand by my earlier viewpoint on what should have happened. You are welcome to disagree with me,  I'm sure plenty of people will. We used to have this thing called freedom of speech. No, I'm not saying you can say whatever you want, consequences be damned; just like I didn't say security should have bought him some iced tea and left him alone. What matters is intention.

Hell, there's a comedian who has a terrorist puppet character. What if someone thought one of his jokes was funny and tweeted it? If security picks up on it, yeah get him away from the stage and figure out if it's a real threat. No question. Charge him if it caused additional problems (like the whole crowd flipping out, or something), but charges that are proportional to the crime... terrorism is in a whole other league compared to what was done here. For example, say the crowd found out and panicked and a person got trampled and died. I would charge the guy with manslaughter at worst (would probably be a dozen charges altogether). 

"...stupid in the extreme..."

A 16 year old kid is excited about a concert and makes a reference to a song by the artist (that happens to include the word bomb, and a pretty standard pop culture reference to "blowing up" aka slaying it aka rocking it aka having a great time aka having a great show aka etc. etc. etc.).

Are we so sadly politically correct that this should be an issue at all? It's a kid excited about a concert. I am blown away by the sensitivity here. This wasn't "stupid in the extreme"...this was a teenager excited about a concert who made a reference on twitter to the artist and her material. I think that's pretty reasonable.

Anyone who was headed to the arena to see the concert likely had an idea of what he meant, i.e. no realistic potential for a "panic" or a "scare" or people being trampled to death in a fearful rush to the exit, especially if you read what he tweeted. If such had happened, fine - charge away. Otherwise, part of me just says "get over it".

No disrespect intended - not a personal callout. Simply my thoughts.

Your scenarios are not at all equal. The terrorists on 9/11 set out to do harm. If only we would have intercepted them.

Tweeting about a bomb at a school (even in a potentially joking manner) would fit the scenario you describe, whether intending to do harm, or a kid being dumb and not thinking through the ramifications. That is where you intercept a kid and possibly press charges.

Tweeting "@Pink I'm ready with my Bomb. Time to blowup #RodLaverArena B!*@h [my edit]” does not fit this basic premise. The artist (Pink) sings a song (Timebomb) that includes lyrics about bombs blowing up. It was a public message directed at her referencing her music. Any person paying money to attend her concert is likely at least familiar with the song, and would understand the reference. I don't think it is reasonable to suggest in any way that this could result in panic, danger, harm, etc. The statement "time to blowup X" or any iteration thereof is common in today's vernacular.

Given the circumstances above, I completely disagree that this statement could at all be interpreted as a "notice of intent", ESPECIALLY in the same line as someone stockpiling fertilizer. I would suggest there is a huge leap between the two.

There IS an alternative action going forward - save criminal charges for criminal acts. This is an overblown misunderstanding caused by overly sensitive persons who were unable to critically assess his statement about the arena in context of the planned event. Bomb - song reference. Blow [it] up - common phrasing: have an awesome time. Venue - concert location where Bombs will be on topic and Blowing up as a sentiment makes fine sense.

From Twitter:

"grandpas 90th birthday party rn everybody cruise!!! blow it up!!!" - mass murder?

"You want to burn this bridge? I'll blow it up." - planned terrorist strike on key infrastructure?

"Just learned termites have weaseled their way into my home, so now I'm trying to decide if I wanna set it on fire or blow it up w/dynamite." - potential insurance fraud?

"I'm the most annoying texter. Like if you don't answer me I'll blow it up. Idgaf"\ - murder?

"2223 delaney ave 32806 Tomorrow's address blow it up!!!" - detailed murder plans?

"Building a bridge just to tie you to it and blow it up." - terrorism with named target?

"I don't wanna hear anyone annoyed tonight with fireworks pictures or tweets this is America baby blow it up" - terrorism?

"Dad is talking about how easy it would be to bringabomb onto a ferry #alwaystheoptimist" - terrorism?

"College Tip: You can get out of class early if you bringa smoke bomb or any bomb." - terrorism?

I do understand there is a difference - the kid's tweet called out a specific place during an event, and included both statements "bomb" and "blow it up". Simply looking to illustrate that these are not irregular or threatening statements, they are part of common vernacular, and assigning "notice of intent" seems somewhat unreasonable.

Paranoia at its finest. Its all those key words that law enforcement focuses on. Put certain ones together and you're sure to bring the law down on top of you. A sign of the times.

so.... if you're standing in a queue at the airport, on the phone to someone, who asks you what your favourite dessert is.... and you say..."Bombe Alaska"... I wonder where that leaves you....  

and unfortunately, that goes with the territory of being...16 years old... in my experience the age for a boy when he is most off his tree is 17... they seem to go through some chemical brain imbalance where they just seem to go nuts... seen it many times... very hard to put old heads on young shoulders... no matter how much you say... 'they are old enough to know that it's wrong'... their brains just seem to be misfiring during this stage.... not saying all... of course there are some nice quiet sensible ones... but, seen and experienced enough of it to know... it's a very dangerous period for them, in many ways, with their decision making...and you're very glad when they make it out at the end of it in one piece...

yep, you wonder where it's all going to end up...

So if I make a joke or something about stealing your car, you should turn me in for me to be charged with grand theft auto? Nothing was done, and they have no case. It's not like the courts dont make mistakes. It's the job of the police to gather suspects and evidence to justify an arrest. Otherwise, just arrest the whole freeway, charge them all with drunk driving, speeding and reckless driving. Let the courts decide.

I think we have different ideas about the point of contention here. I won't speak for anyone else, but I'm not saying nobody should have acted on the tweet. Yes, from a certain view, it represented a threat to the people at that concert. To remove that threat, I agree he should have been taken away, questioned, and searched. That has to happen for the security of the other people. We agree up to here. Then, the concert ends, everyone leaves, there was no attack, no trace of equipment, and it's obvious he was taken out of context. You let him go. He already lost the money for the concert ticket and had a not very fun time over A MISUNDERSTANDING.