Maybe that's because Silva never actually said anything derogatory towards Americans?
If Anderson had said equally offensive stuff about America, I'm 100% sure he would have been attacked at some point.
For example, if I went to Australia and called them all unwashed inbred beach monkey wannabe New Zealanders - Im sure I would get a kick in, even if it is true.
You would only get a kick in only because we would be stunned to fathom how we are the convicts with you guys running around in england punching horses in newcastle and showing off there big bellies in filthy toilet bowl pubs.
Also Anderson would probably get his knob licked by americans still if he said that, i'm right your wrong and there's nothing you can do about it. That's an important and valuable life/forum lesson for you twat man.