A video by WITNESS on the Human Rights Channel of YouTube wrapped up some of the most significant protests and human rights abuses of 2013. Dozens of clips shot by citizens worldwide are edited together to show efforts to withstand injustice and oppression, from Sudan to Saudi Arabia, Cambodia to Brazil.

A post on the WITNESS blog by Madeleine Bair from December 2013, celebrates the power of citizen activism using new technologies including video, while readers are reminded that the difficulty of verification and establishing authenticity remains a big obstacle.

“Citizen footage can and is throwing a spotlight on otherwise inaccessible places such as prisons, war zones, and homes,” says Bair. “But given the uncertainties inherent in such footage, reporters and investigators must use it with caution.”