Tumbleweed Invasion (IMAGE) University of California - Riverside Caption Commandos from Cannon Air Force Base, N.M., clear tumbleweeds from a residential area in Clovis, N.M., 2014. Credit U.S. Air Force/Senior Airman Ericka Engblom Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.