As Far As I Know

As Far As I Know (denial suffical-phrase)
 * 1) what a person should say after making a declaration so  definitively that it may one day have to be denied or the contrary of which is found to have been true the entire time
 * 2) a phrase which can cast doubt on any previous statement no matter how sincere it may have sounded

Example: Hillary Clinton said barack Hussein Obama is a Christian, and not a Muslim...as far as she knows