Article Photos: Colorado lawmakers advance gun control bills 5/11

Opponents of proposed gun control bills being considered by the Colorado Legislature,  hold a sign depicting an assault rifle, displaying it to those passing in cars, in front of the State Capitol, in Denver, Monday March 4, 2013. State Senate committees began work on a package of gun-control measures that already have cleared the House which include limits on ammunition magazine sizes and expanded background checks to include private sales and online purchases. (AP Photo/Brennan Linsley)