Despite all the hype, I'm pretty sure that someone can take remote control of your computer through a Windows flaw only if you get caught with your pants down, the outside temperature is over 75F, there's a sale at Target, and somebody who is really intent on personally fucking you over has been sitting in front of his computer hacking away for at least 42 hours straight. More than likely, even these conditions won't guarantee success.
Still, there is that tiny little window of opportunity that someone might think it is worthwhile to take, so best to cover your ass.
When Bill Maher was on Jay Leno the other night, he defended George Bush's endorsement of wiretaps by proclaiming that George Bush was an idiot who didn't know how to properly fight a war on terrorism. Instead of using the right weapons against the right enemies, he does things like, well, what he's done. Wiretaps on private innocent citizens are a shitty thing to do, but considering what George Bush's bag of tricks looks like, it's to be expected. I think the same thing is going on here. They aren't willing to do the right thing, but they are willing to take idiotic little countermeasures that seem like they would help a lot. In effect, freaking out about the latest overhyped Windows flaw is exactly what you would expect from Homeland Security.
I guess you'd have to hear Bill Maher's words yourself to see what I'm getting at. Well, whatever.