MIN READDec 8, 2020 | 10:00 GMT

Cars line up on the Mexican side of the San Ysidro crossing port at the U.S.-Mexico border in Tijuana, Mexico, on March 12, 2020.

(GUILLERMO ARIAS/AFP via Getty Images)

The compounding crises of 2020 will likely contribute to a new wave of immigrants from hard-hit Central American countries. While previous surges of migrants in 2018 and 2019 contributed to significant disruptions along the U.S.-Mexico border, a repeat of those episodes in 2021 is unlikely. But addressing the many security challenges that still plague the United States’ southern border will require working more deeply with Mexico on a long-term solution....