Founded in 1990 by three M.I.T. researchers, iRobot introduced its vacuum in 2002. Its restructuring will turn the company over to its largest creditor.

A section of the tall bridge in mountainous Sichuan Province fell, apparently after a landslide. No casualties were reported.

China will require licenses for export of 13 chemicals used to make the deadly drug, another indicator of thawing tensions between the world’s two largest economies