lyrics too violent? I can almost guarantee that the customs officers wouldn't be able to repeat single word until they listened to the album at least 5-6 times. I like Bone thugs (new album sucked balls though) and I can only grasp 25% of their lyrics on the first listen.
http://www.youtube.com/watch?v=otPoBcBpgMg
fast forward to 3:30 to see what I mean if you have never heard them rap