On Saturday night, President Barack Obama will be the keynote speaker at a dinner sponsored by the Human Rights Network, a gay-rights organization. It would be a great time to announce a dishonorable discharge for the nation’s “don’t ask, don’t tell” policy, which has governed the lives of gay and lesbian members of the military since 1993. The best case for dumping this odious compromise between President Bill Clinton and military brass comes from the military itself. Writing for an upcoming edition of the Pentagon’s scholarly publication, Joint Force Quarterly, Col. Om Prakash, who works for Defense Secretary Robert Gates, wrote: “After a careful examination, there is no scientific evidence to support the claim that unit cohesion will be negatively affected if homosexuals serve openly. Based on this research, it is not time for the administration to re-examine the issue; rather it is time for the administration to examine how to implement the repeal of the ban.”