It's as easy as that. Joseph Kony and his PMC have been doing their dirty work for nearly 30 years. Do you really think that this is going to do anything? Kids being sent to war/being raped is seriously no worse than Afghanistan, Africa, Iraq, Iran, The middle east, the other Islamic nations, and so on.
So you've got an 8 year old girl, skipping through a field, trying to enjoy what her life is in a war torn world in Afghanistan. She steps on a mine. Her legs get blown off. She dies, and her family, already taken a huge toll on by poverty and possible killing of other females, arrests of fathers, etc, has to deal with a missing daughter, and they are unaware of her state. They find out, a week later, she got killed by a mine. You don't see 14-23 year olds sending out tweets about that in hopes that the government will do something. Putting up posters. No, no you don't.
I do, however, feel something does need to be done. I think kids in Uganda need to be treated, they need to fix up everything. I think they should do something practical. Putting posters up and ransacking a city overnight is NOT the way to do it. Maybe a petition of a few million signatures would do something. It has before and will again. Vandalizing your city will do nothing but turn into a riot.
Something needs to be done, and fast, but not via tweets, facebook, and vandals.