As a presidential candidate, Barack Obama vowed to work to overturn the “don’t ask, don’t tell” policy on gays and lesbians in the military. But since taking office, Obama has made no specific move to do so. Last week, the Supreme Court decided not to hear a challenge to “don’t ask, don’t tell.” In a brief, the Obama administration had said the “don’t ask, don’t tell” policy is "rationally related to the government’s legitimate interest in military discipline and cohesion.” We speak to former Army Secretary Clifford Alexander and Nathaniel Frank, author of Unfriendly Fire: How the Gay Ban Undermines the Military and Weakens America. [includes rush transcript]