Despite the problems with the chips - that they can be read from a distance, potentially identifying US citizens, and that they can be copied - the Department of State is confident it has done enough to make them safe.
In other words it makes those of us overseas big targets for repraisels the next time the US does something stupid and we could make fakes and sell them on the black market. Yeah, really safe. Good thing I won't need to renew my passport for another 9 years or so.
You can never totally secure technology, I just wish they would figure it out.
EDIT: And did you guys notice how they quietly slipped this through? I can't find this on MSNBC's website, there's no public uproar, no nothing. What is wrong with the American public......