Both as a senator and as a candidate for the White House, President Obama rightly urged repeal of the so-called Tiahrt Amendment that constrains efforts by the police and other authorities to combat shady gun dealers and gun traffickers. Regrettably, Mr. Obama's budget proposal does not call for full repeal of these laws. On the plus side, the president's budget calls for eliminating a provision that restricts police access to trace data involving guns used to commit... (GunPolicy.org)