Images of Ferguson confrontations resonate around U.S.
Video duration: 5:11
A scene of chaos in Ferguson, Missouri, captured the nation’s attention when police officers unleashed a barrage of stun grenades and tear gas to dispel protests over the killing of an African-American teenager. Police said they used force when protesters started throwing rocks and firebombs. Judy Woodruff reports on the incident, and the pushback that followed.