“The number of people in Colorado applying for background checks to purchase firearms has surged in the aftermath of the movie theater shootings in Aurora,” Reuters reports. “In the three days after the rampage, 2,887 people were approved for gun buys, compared with 2,012 the weekend before, a 43.5 percent increase, according to data supplied by the Colorado Bureau of Investigation.” After last year’s Arizona spree killing, Bloomberg reported that handgun sales in Arizona spiked 60 percent on the Monday after the shooting (year-on-year comparison). What does that tell you?