Well in the video i think there was more little ginger kids getting shot in the head than "hazing".
ALOT of people fail to see the message in this video, and frankly, its a little hard to explain. M.I.A. is taking the lady gaga approach (producing strange/ very odd music videos that generally leave people a little shocked and turned off) and blowing in right out of the water, like fucking waaaay out of the water. i think she did it to show that artists dont need to try so hard to make american superstars seem interesting (the lady gaga philosophy).
M.I.A. has got all kinds of beef with gaga, heres a few links that may or may not help some people out that are interested in this:
http://vimeo.com/11219730 comments are really good