The Glock 19 semiautomatic pistol that Jared Loughner is accused of using in his rampage in Tucson, Arizona, is, according to Glock's website, "ideal for versatile use through reduced dimensions" and is "suitable for concealed carry." The site continues, "Compact and subcompact Glock pistol model magazines can be loaded with a convincing number of rounds," from the standard 15 up to 33. The shooter was able to kill and wound to the extent that he did, with six dead and 13 injured, because he had a semiautomatic, concealed weapon, along with the "extended magazine." He was attempting to reload the weapon with another extended magazine when a brave, unarmed woman knocked his next clip from his hand.

The Tucson massacre that left six dead and 14 injured, including Rep. Gabrielle Giffords, brought into sharp public focus the local sheriff, Clarence Dupnik. He's been the sheriff of Pima County, which includes Tucson, Arizona's second-largest city, for 30 years. For the 20 years before that, he was a police officer. Dupnik has gained attention this week for linking the shooting to the vitriolic political climate in the U.S., and in particular, Arizona.

Speaking at a press conference shortly after the shooting, Sheriff Dupnik said: "The anger, the hatred, the bigotry that goes on in this country is getting to be outrageous. And unfortunately, Arizona, I think, has become the capital. We have become the mecca for prejudice and bigotry."

This week's mass processing inside (and outside) a Toronto courthouse helped clarify June's Jailapalooza festival during the G20, the largest mass arrest in our history. Of 1,100 detained, all but 227 had the charges dropped or were never charged. Most had no links to burning police cars or battered bank machines. They were picked up while protesting peacefully or looking on.

Why? Police say they wanted to prevent recurrences, after the dramatic events. Some intimate they were embarrassed by criticisms of their earlier inaction, and overreacted. Why had police gone missing at the crucial time? There's been no clear answer. One possibility: to justify the vaulting security costs via shocking images of violence.