'ENOUGH' - U.S. student walkout sends message on gun violence

Columbine High School student Leah Zunder holds a sign during a National School Walkout to honor the 17 students and staff members killed at Marjory Stoneman Douglas High School in Parkland, Florida, in Littleton, Colorado. REUTERS/Rick Wilking

PARKLAND, Fla. (Reuters) - U.S. students spilled out of classrooms by the tens of thousands on Wednesday, chanting slogans like "No more silence" and "We want change" as part of a coast-to-coast protest over gun violence prompted by last month's massacre at a Florida high school.

The #ENOUGH National School Walkout was intended to pressure federal and state lawmakers to tighten laws on gun ownership despite opposition by the National Rifle Association (NRA), the powerful gun rights advocacy group.