NPR所谓每10万人3.55 死于枪的我看不懂怎么来的。自杀的大多是用枪的？ 自杀也能怪到枪上面？

http://www.worldlifeexpectancy.com/usa-cause-of-death-by-age-and-gender

http://www.npr.org/sections/goatsandsoda/2015/12/07/458815891/the-u-s-is-a-world-leader-in-gun-deaths

就算homicide 被枪干掉的不过1万出头一年，09年到13年还往下降。
https://www.fbi.gov/about-us/cjis/ucr/crime-in-the-u.s/2013/crime-in-the-u.s.-2013/offenses-known-to-law-enforcement/expanded-homicide/expanded_homicide_data_table_8_murder_victims_by_weapon_2009-2013.xls