Why not? Aren't there lots of AR-15s/M16s in the movies these days?
/half sarc
Interesting that the Liberal media/Hollywood gets a pass on violent imagery but a kid doesn't, isn't it? I mean, it's not like they glorify mass murder and moral subjectivity or anything, right?
In other news, Obama's sons continue to post pics of illegal guns (prohibited persons) and drug operations on Facebook all day long and LE does jack squat.
So you are defining the limit of free speech to "poor taste?" There are many people who post stupid things on the Internet. Talking about violence is not the same as committing violence. Posting a pic of an AR on FB with the caption, "going to the movies" is not the same as showing up at the theater with a loaded rifle and pointing it at people.
Freedom involves risks.