US Police Fatalities up 13 percent in 2011 to 173

Government cutbacks a major factor but so are the increase in the number of guns in our society:

Craig Floyd, the group's chairman, blamed the rise on budget cuts to public safety departments. He cited surveys by police groups that showed many cut back on training and delay upgrading equipment, and referenced a Department of Justice report issued in October that said an estimated 10,000 police officers and sheriff's deputies have been laid off within the past year.

"I'm very troubled that these drastic budget cuts have put our officers at a grave risks," he said. "Our officers are facing a more brazen cold-blooded element and fighting a war on terror, and we're giving them less training and less equipment they need to do their jobs safely."

[...]The number of firearms-related fatalities, which have risen 70 percent since 2008, was particularly alarming to analysts. Of the 68 deaths, 14 took place while the officer was attempting an arrest, nine occurred during a domestic disturbance call and five were ambushes, according to the data.

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