Human trafficking is big business at the border. Cartels are raking in more than $30 million a month exploiting migrant families looking to make it into the United States. Many of these migrants get caught up in cartel turf wars; many of them are killed.

“The Mexican cartels have been heavily into human trafficking for a long time,” says Robert Almonte, a former El Paso cop and Mexican cartel expert. “Now, with the rash of border crossings, they are involved more than ever. They don’t see these migrants as people. They see them as commodities, like drugs. And if [the trafficked migrants] ‘belong’ to a rival cartel, they’re going to kill them.”

Cartel violence accounts for more than 95,000 missing persons according to Mexico’s National Search Commission. 13 men went missing this week, assumed victims of violent cartels.

“Despite a series of intense overland and helicopter searches in the region where the migrants went missing, authorities have so far turned up no sign of the men, who ranged in age from 22 to 55 years old,” the New York Post reports.

“Now they are all believed by Mexican authorities to be dead,” the Post continues. “According to the Dallas Morning News and Marfa Public Radio,a Mexican security official close to the investigation said that authorities are ‘looking for bodies, or pieces of them, of what’s been left behind’ in the desert. The official spoke on the condition of anonymity for fear of reprisal, adding, ‘I can tell you, they’re not alive.’”

Senator Ted Cruz (R-TX) shared the story on Twitter with the simple hashtag: #BidenBorderCrisis