U.S. Senator Charles E. Schumer today called on the nation’s largest gun retailers to participate in a temporary moratorium on selling assault-style rifles until Congress has considered legislation to reduce gun violence. >snip A copy of Schumer’s letter can be found below: Michael Duke Chief Executive Officer Wal-Mart Thomas Millner Chief Executive Officer Cabela’s James Hagale Chief Executive Officer Bass Pro Shops David Pratt Chief Executive Officer Gander Mountain Darrell Webb Chief Executive Officer Sports Authority Rodney Faldyn Chief Executive Officer Academy Sports and Outdoors Steven G. Miller Chief Executive Officer Big Five Sports Dear Mr. Duke, Mr. Millner, Mr....