The only response you can expect is an instant change of subject. The most obvious questions raised by Certifigate are simply never answered.
The most basic birther demand: That Obama produce the best available documentation of his birth. He has not done it, and there must be a good reason why he has not done it.
I'll add my own obvious question: What last name appears in Obama's mother's signature on Barack's long form? Does she sign her name as Obama or as Dunham? If she used Dunham, is that what Barack has been trying to hide?
Can't be. Obama has already admitted that he was a British citizen at birth, and probably still is, and that could only happen if he was born in British Kenya or his father was a British national.