To answer your question, 2% of black America is Muslim. However, it's the community's fastest growing religion.
Ayaan Hirsi Ali was born and raised in SOMALIA, not Nigeria. However, sharia applies there as well (even more so than in Nigeria, which has a much larger Christian population that's fighting it). However, she fled to Canada earlier in her life to avoid an arranged marriage by her strict Islamic parents. She is a political scientist by profession (in addition to her Parliament duties).
We could use a few Hirsi Alis in this country...
It's been hailed as the "fastest-growing religion among blacks" for 50 years now. Maybe we should take another look at all this "fastest-growing" talk. Maybe it's the "fastest-talking" religion.