Please Give Blood, But Be Celibate: Revised FDA Rules Called Into Question Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email For the first time, a U.S. advisory panel is poised to recommend that the 31-year ban preventing gay and bisexual men from donating blood be revised. ( Getty ) Produced by Mythili Rao Produced by PRI and WNYC