The US kangaroo courts operate on a principal of coerced false confession. The oppressive multitude of petty laws is used to heavily over-charge defendants. They are then offered the choice of "confessing" or spending the rest of their life in the hellish sensory deprivation torture chambers of the American gulag.
Consider that "of the 82,092 defendants terminated during Fiscal Year 2013, 75,718, or 92 percent, either pled guilty or were found guilty" and "during Fiscal Year 2013, a total of 73,397, or 97 percent,of all convicted defendants pled guilty prior to or during trial." Source: United States Attorneys' Statistical Report 2013 Only 3% of federal prisoners were convicted by an actual trial!
That someone plead guilty at an American trial is no more damming than if they had farted.