I don't think MrSid was being anti-American. He was simply being harshly egalitarian. I have seen that kind of response to all tragedies, be they a shuttle breaking up over Texas and taking seven people with it or a jumbo jet going down in the Ukraine and taking two hundred and fifty two people with it. There are simply people who see everybody as having the same value, regardless of the specifics.
They aren't anti-Russian when they disagree with caring about Russin victims of an air disaster and they aren't anti-Filipino when they mock people for caring about the victims of a ferry disaster.
In all cases they are being very rude and insensitve, but their beef isn't with a country, it is with us who place our sympathy and hopes in a particular set of people and not with the random victims of everyday automobile accidents.
For my part I think they are wrong, and I think they are juvenile to spout their inflamitory comments when people are obviously mourning.
The Columbia and the seven Astronauts abourd her were carrying a portion of our hope for a better tommorrow, and when they died that bit of hope died. Because they risked, and payed with, their lives to carriy that hope they are heros.