Hey now, that show's cool when you're twelve. About the violence thing. American publishers sell two versions- edited and unedited. Edited is what you see on Toonami, and unedited is, for the most part, what is seen on Adult Swim. This is done with many different shows- Tenchi Muyo, Cowboy Bebop, Yuyu Hakusho- it's gotten pretty common.
I'm sure everybody already knew; I just wanted to give a reminder that, on CN, when you watch determines what you see.