In Yemen, thousands of people took to the streets of the capital Sana’a Tuesday to demand an end to the U.S.-backed, Saudi-led bombing campaign, which has killed thousands of people since it began 19 months ago. A new Human Rights Watch report details how U.S.-supplied weapons were used in two recent Saudi-led airstrikes that killed several dozen civilians this fall. The attacks include a September 10 airstrike against a drilling site for water that killed more than 30 people, including three children. Remnants of U.S.-made weapons were found at the scene of this strike.