What does this have to do with the president?
"possibly thousands of people who could potentially know something that could damage the president were it made public knowledge or leaked to the press."
You think powerful people would kill someone "just because" please.
Where do these ideas come from?
Oh, you were looking for some hard evidence.
http://www.hartfordadvocate.com/gbase/News/content?oid=oid:32556"Eugenics would have been so much bizarre parlor talk had it not been for massive financing by corporate philanthropies, specifically the Carnegie Institution, the Rockefeller Foundation and the Harriman railroad fortune. They were all in league with America's most respected scientists hailing from such prestigious universities as Yale, Harvard, and Princeton. These academicians faked and twisted data to serve eugenics' racist aims. Connecticut was considered both an epicenter for eugenic propaganda and a test case for ethnic cleansing."
"The Harriman railroad fortune paid local charities, such as the New York Bureau of Industries and Immigration, to seek out Jewish, Italian and other immigrants in New York and other crowded cities and subject them to deportation, trumped up confinement or forced sterilization."
The Rockefeller Foundation helped found and fund the German eugenics program and even funded the program that ultimately sent Josef Mengele into Auschwitz."
Who was Harriman's partner?
http://www.nhgazette.com/cgi-bin/NHGstore.cgi?user_action=detail&catalogno=NN_Bush_Nazi_2"Bush's partners in the secret web of Thyssen-controlled ventures included former New York Governor W. Averell Harriman and his younger brother, E. Roland Harriman. Their quarter-century of Nazi financial transactions, from 1924-1951, were conducted by the New York private banking firm, Brown Brothers Harriman."
Read it. It was real. This is about people who were a "threat" because they had "defective genes". Imagine what would happen to someone who could actually threaten their power.
There's more, but forget it. It's all so "tin-foolish."