As of early this week, the U.S. Food and Drug Administration had yet to respond to a Nov. 29 joint letter by 52 members of the U.S. House and U.S. Senate calling on the FDA to end its policy of restricting the donation of human tissues such as corneas, heart valves, skin, and other tissue by men who have sex with men, or MSM. The letter is addressed to Acting FDA Commissioner Janet Woodcock and Department of Health and Human Services Secretary Xavier Becerra. The FDA is an agency within the HHS. The letter says the FDA’s restrictions on MSM tissue donation date back to a 1994 U.S. Public Health Service “guidance” related to the possible transmission of HIV, which stated that any man “who has had sex with another man in the preceding five years” should be disqualified from tissue donation.