I am as frustrated with anyone with the direction that Andrew Sullivan has taken. But, let's not compare him to David Brock just because they are both homosexuals.
Brock is a scurrilous liar and a phoney. Sullivan is an intellectual with some conservative views, but was seduced into the HateBush camp. Although I no longer read his blogs (too much on gay marriage), I still have hope for him. Brock is a lost cause.
Mr. Sullivan has taken the position that legal sanction for sodomites pretending to marry each other is more important than our national security.
I think your hope is ill placed - Mr. Sullivan is ruled by his sexual proclivities, not intellect or patriotism.