Mexican drug cartels are now warring along the Texas border for control of access to the United States as the Biden administration continues to ignore the crisis – especially its human toll in many respects, according to investigative reporter Sara Carter.

Carter told Fox News’ “Hannity” on Wednesday that cartels now feel they can operate with impunity anywhere along the United States border – after witnessing months of inaction by President Biden and DHS Secretary Alejandro N. Mayorkas.

“They know no one is going to hold them accountable and they realize the US government is doing very little to stop the flow of traffic,” Carter said.

Over the last month, there have been at least three clashes between the Northeast cartel – a branch of the ruthless Los Zetas – and the Gulf cartel, for control of the U.S.-Mexico border in Starr County, Texas, she reported.

Most recently, a dozen cartel members amassed along the Rio Grande to taunt Border Patrol agents who were patrolling the American side of the river.

When the agents called the Texas Department of Public Safety for assistance, TXDPS sent a helicopter to the scene, which captured video of cartel members with high-capacity weapons.

“One of the biggest [considerations] is, are they going to escalate,” Carter said.

The border patrol rank-and-file are “terrified that one of these cartel members will shoot across the border and cause an international incident,” she added.

Carter also pointed to a recent case near Calexico, Calif., where a young girl was abruptly dropped over the border wall by a smuggler, left to fend for herself in what the reporter said is a very dangerous area.

Another major issue facing law enforcement is that, if they are ever able to arrest human or drug smugglers, the cases require assistance from the federal government – help that Joe Biden is not inclined to offer.