Along with millions of Kindles, Angry Birds and gift cards, Santa left a record number of guns under Americans' Christmas trees, especially in Kentucky, according to FBI statistics on background checks.In the six days before Christmas, gun dealers submitted nearly half a million names for checks on criminal records and mental health issues, with 20% coming Dec. 23, according to news reports. That was the second busiest gun buying day in history, topped only by firearm purchases on Black Friday, the day after Thanksgiving.

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