It is unwise to jump to conclusions, especially when you are holding an entire nation to blame for what could have been a prank or demonstration by students. As an American, I am angry at those specific French people who would do such a thing, but as an open minded American, I also know that there are French (although admittedly few) who support the US. I wont fall victim to stereotyping an entire country.
We should not hold this as evience as the opinion of the entire country of france any more than a group of protesters in Berkley protesting the war in Iraq. We both have our embarrassing knuckleheads.