(1) Imus actually apologized for his inappropriate comments.
(2) Imus comments were off the cuff. Letterman comments were planned and rehearsed.
(3) CBS fired Don Imus.
(4) MSNBC fired Don Imus.
(5) Imus verbally attacked women over 18. Letterman verbally attacked a 14 year old girl.
(6) CBS boss Les Moonves "deeply upset & revulsed" by Imus, silent on Letterman.