Not necessarily true.
1409. Children born out of wedlock
http://www4.law.cornell.edu/uscode/html/uscode08/usc_sec_08_00001409——000-.html
When was that amendment passed?
If the amendment was made after Obama's birth, then he might be considered a "Citizen at birth," if he was born in Kenya, but he would not be a Natural Born Citizen.
In order to be a "Natural Born Citizen" you must have been born a Citizen and not made a citizen by legislative fiat. Congress does have the power to make anyone a citizen, or even a "citizen at birth", but they do not have the power to make a "Natural Born Citizen" out of a person who was not a citizen at the time of his birth.
My research shows that that amendment was adopted in 1986 and therefore it was not in effect in 1961 and thus while it would make a person a citizen at birth, it would not make a person a "Natural Born" Citizen.
Thus while it would make Obama a Citizen, it would not give him "Natural Born" status. It would simply give him "Ex-Post Facto Legislatively Mandated Citizenship at Birth" status.
Libyan Leader Mu'ammar Al-Qadhafi: Obama...Should Be Proud of His African, Muslim Identity
Isn't this what Obama is trying to hide....?