“New FDA policies will prohibit all men who have engaged in homosexual sex in the past five years from donating sperm – even though sperm can be tested for the HIV virus, frozen for several months and then tested again, the Associated Press reported.”

but:

“Heterosexual men who engage in unsafe sexual practices are still allowed to donate sperm. Critics say that rather than select prospective donors on the basis of participating in gay sex, the FDA should screen all men on the basis of participating in high-risk behavior, regardless of sexual orientation.”

how the hell would they know who was doing what with whom and how often they are doing it?