I read this great essay by LTC (ret) Peter Fromm that was posted at The Best Defense. The author teaches ethics at USMA and explores his own experience with hazing as a cadet there in the 1970s.
This is definitely worth the read for anyone interested in military culture. Anyone who has been in the infantry for a little while will identify with hazing. Most infantrymen I know support healthy ribbing so long as it is safe and promotes unit camaraderie and esprit de corps. No one I know thinks hazing that results in pointless humiliation or harm has a place in the Army.
Still, this stuff happens. Leaders who want to make the Army better have a responsibility to squash this wherever it occurs.