FILE - In this March 20, 2020 file photo a woman adjusts her hat and mask as she arrives from Tijuana, Mexico, crossing by foot at the San Isidro port of entry in San Diego. An increasing number of American citizens have been apprehended as they have tried to smuggle illegal drugs into the U.S. since the start of the coronavirus pandemic, an uptick that's come amid travel restrictions at the border with Mexico. (AP Photo/Gregory Bull, File)

This undated photo provided by the U.S. Customs and Border Protection shows seized drug bundles containing 132 pounds of methamphetamine on display from Feb. 25, 2021, at the Laredo port of entry. The drugs were concealed in a vehicle driven by 23-year-old U.S. citizen traveling from Mexico. Since the start of the coronavirus pandemic, an increasing number of U.S. citizens have been apprehended while they have tried to smuggle illegal drugs at the Southwest border. (U.S. Customs and Border Protection via AP)

FILE - This April 2, 2019, file photo shows the port of entry from Mexicali, Mexico to Calexico, Calif. An increasing number of American citizens have been apprehended as they have tried to smuggle illegal drugs into the U.S. since the start of the coronavirus pandemic, an uptick that's come amid travel restrictions at the border with Mexico. (Mark Holtzman/West Coast Aerial Photography Inc. via AP,File)