an 8. - Tuscon native Jared Loghner, 22-year-old, shot 19 civilians and fatally wounded six at a local Safeway during a constistuent meeting. United States District Court for the District of Arizona Chief Judge John Roll was among the six killed.

Dec. 6 - Walmart and the Department of Homeland Security teamed up to create the program "If You See Something, Say Something," a program that is designed to promote safety in participating communities. 588 stores in 17 states are participating in the national campaign.

Nov. 10 – NASA delayed the launch of space shuttle Discovery, which was initially scheduled to for Nov. 1, due to cracks in the fuel tank. Discovery will take a Pressurized Multipurpose Module (PMM) Leonardo and the ELC-4 to the International Space Station. Initially, the launch was delayed due gas leaks and then due to weather.

Oct. 5 – Energy Secretary Steven Chu announced that workers will install solar panels on the roof of the White House in the summer of next year.

Sept. 29 – BP chief executive Bob Dudley, who replaced former CEO Tony Hayward in July, is creating a new global safety division titled the "Safety & Operational Risk Unit", which will have authority to intervene in all aspects of BP’s technical activities.