I make a point of never trying to guess what Sarah Palin is up to, but Karl Rove is a braver soul than me.  George W. Bush’s former adviser says that her appearance at the Tea Party’s upcoming “Restore America” rally will be the occasion for her to announce her candidacy. It’s as good a guess as any, and he’s not the only one making it. She did just make an appearance in Iowa, and that bus tour can’t just be for the sake of sight-seeing.  (Of course, Rove might also just be trying to yank Rick Perry’s chain; it’s hard to tell.)

An anti-technology group has been targeting scientists researching nanotechnology, most recently sending a bomb that injured two Mexican professors. This attack is believed to be linked to a similar mail bomb sent to another Mexican professor researching nanotech, though that parcel was opened instead by a security guard who sustained minor injuries. Other anti-nanotech attacks have occurred in Spain, Chile, and France, while members of a Swiss group were recently convicted of planning to bomb an IBM lab that carires out nanotech research. It’s unclear whether those incidents were carried out by the group claiming responsibility for the Mexican attacks, which calls itself “Individualities Tending Toward Savagery.”