The 332nd Fighter Group never lost a single bomber that they escorted to enemy fighters. Not one. I believe no other fighter group in the USAAF in WWII could make that claim. You are correct. The Tuskegee Airman never lost a bomber and they are the ONLY WWII figher group to be able to make that claim.
Their courage and determination is truly something to behold. I don't remember if it was Discovery Channel or History Channel that ran a very well done documentary of the Tuskegee Airman. Be on the lookout for it though, I hope with Davis' passing they'll re-run it.
Though there was a fine film version of the their story made made for HBO in 1995:
The Tuskeegee Airman which starred Laurence Fishburne, Cuba Gooding Jr, Andre Braugher, and a host of others. It was based on the remeniscences of Robert W Williams, one of their number whom I was privleged to know before his passing in '97.
Their achievements are truly legendary.
Benjamin O Davis JR, their leader, RIP.