Obama proposing gun limits, faces tough obstacles

Tuesday, January 15, 2013 | 7:20 p.m. CST; updated 7:39 p.m. CST, Tuesday, January 15, 2013

WASHINGTON — President Barack Obama is launching the nation's most sweeping effort to curb gun violence in nearly two decades, urging a reluctant Congress to ban military-style assault weapons and high-capacity ammunition magazines like those used in last month's massacre of 20 elementary school children in Newtown, Conn.