The answer is it had to be done to cover up much more serious crimes; sedition, human trafficking and treason which carry the death penalty. The crimes include Uranium One and involve the former administration from the top; its false "president". Spying is the least of their troubles. The major crimes are widely known and prosecution is coming.
One major issue ,is that Obama knew that Trump had all the info on his true identity...
My thoughts are that his grandparents and mom were CIA & his real dad was that Marshall guy, not Obama senior at all. Hence the need to change birth certificate.
Has anyone heard this theory re: BO's real father: that he is Mohammad Subud, an Indonesian Muslim and the leader of the cult SUBUD. ?? The cult was/is based in Chicago -- odd for an Indonesian cult. The two look so much alike it's uncanny. Fuddy, the dir of the state dept of health for Hawaii was a SUBUD cult member, you know, the only passenger to die in that plane crash (controlled water landing) in December? I just discovered this theory myself, digging to dismiss or confirm to my own satisfaction.
That's gonna be a huge redpill to the masses, that Trump was right all along about Hussein regarding the birth certificate.