New cartel threats against border agents: Explosives, drones and wireless tracking

As President Donald Trump steps up border security and deportation efforts, agents with Customs and Border Protection (CBP) and Immigration and Customs Enforcement (ICE) are finding themselves under alarmingly sophisticated threats to their safety, an expert tells Fox News Digital.

"The cartels are losing business. The encounters at the border are the lowest they’ve been in decades, and the cartels are not just going to give up that business quietly," Lora Ries, director of the Heritage Foundation's Border Security and Immigration Center, told Fox News Digital. ---More...