Full title: Obama's Executive Gun Control: No Minimum Threshold Before Private Gun Sales Require Background Checks On January 4, the White House released a fact sheet which previews the executive gun control Obama will announce Tuesday, and it reveals there is no numerical threshold of sales that a private seller has to cross before being considered "engaged in the business of dealing in firearms."In other words, previous hints that there would be a "trigger"--a certain number of guns that a private seller had to sell before being considered "engaged in the business"--are now out the window. Figures like those reported...