This was my thought too. The US has a not-great record, but the failings of the US govt. shouldn't preclude others who happen to hail from that country from criticising others. Even if it is a case of the pot calling the kettle black, that doesn't affect the blackness, or otherwise, of the kettle. In reality, nobody is squeaky-clean, but that shouldn't preclude us from getting the Brasso out to brighten things up a bit, and stretch this analogy to death.