Migrants are showing up at the U.S. Southern border in historic numbers. Here's why

A migrant family shows their paperwork to Mexican immigration officials to proceed with their CBP One asylum appointments at the Chaparral pedestrian border in Tijuana, Mexico to cross to the U.S. on Thursday.

“Katastrofa. Katastrofa.”

A man named Piotr repeats this like a mantra. On a warm fall evening in Tijuana, he’s the first in a long line to request asylum in the U.S.

“Katastrofa,” he says again, on the verge of tears. It’s the Russian word for catastrophe. Piotr, a middle-aged man who requested that his last name be withheld to protect relatives back home, left Moscow more than six months ago with his immediate family — his wife and two teenage sons.