Should we worry about the LHC?

I'm in high anxiety mode these days, so when I read about the lawsuit against the Large Hadron Collider, I added it, Outlook-style, to my task list of worries. Seems a couple of scientists (at least one of whom, according to the Bad Astronomer, is way out there) think the collider could create a black hole or else a kind of cascade of "strangelets." Both of these things would be bad, although the word strangelet is quite good. Anyway, the Bad Astronomer, Phil Plait, says not to worry. I'm glad, because I really want to like the LHC. I'm a particle-smashing groupie, have been for years. Besides, now I'm consumed with cell phones (and wireless) causing brain tumors.