a cautionary tale

[wackyjacky1]

After reading this thread, I took a close look at my tires. The rear tire had some loose threads here and there. It doesn't seem like much to me, but I don't really know about this stuff.

My tires are the originals on an '08 Trek 7.2FX. They've got about 2000 miles on them, give or take a few.

Is this sufficient to warrant new tires? There are four or so little spots like this along the sidewall where small threads are tearing away. I ordered new tires from Nashbar, but now I'm wondering if I'm just being paranoid.