The Joint Chiefs Quarterly, which is the publication of said body, released the following editorial. It was written by Colonel Om Prakrash and vetted by the chairmen of the Joint Chiefs.
http://www.ndu.edu/inss/Press/jfq_pages/editions/i55/14.pdf
If you can't get any clearer on why the policy needs to end, then you're just not paying attention.
It emasculates the entire policy for placing the military in an ethical bind and compromising an organization that values its moral and ethical integrity as paramount.
Conservatives are fond of saying that we should let the military make military policy. Apparently that only applies when it doesn't offend their righteous sensibilities. You can say that you think gay people should have the same rights, but you cannot say that and mean it when the reason you provide for denying them the basic right to be openly homosexual is that they're too craven to control themselves. 12,000 men and women have been kicked out of the armed services since the adoption of the policy. They were told to leave for no other reason than they were biologically compelled to like the same sex.
In a nation that prides itself on openness and equality, on patriotism and on service to the nation, I find it sad and depressing that people who volunteered to put their life on the line are denied that right because they were simply different.
I know why Obama hasn't acted yet, and it annoys me, but yes, but I am also willing to give him time. He's less than a year into his presidency after all.