Last week, President Obama said that U.S. intelligence agencies have not detected any plots by Islamic State militants to stage an attack on U.S. soil. But some Republicans are worried that members of the terrorist group could still be headed this way—and they might cross into the country through the Mexico border.
The concern isn't new. In August, Texas Gov. Rick Perry said in a speech at the Heritage Foundation that "individuals from ISIS or other terrorist states could be" crossing into the U.S. through the Mexico border. Last week, at a congressional hearing on ISIS, Rep. Jeff Duncan, R-S.C., said that "with a porous southern border, we have no idea who's in our country." And on Wednesday, Rep. Bennie Thompson, D-Miss., asked Homeland Security Secretary Jeh Johnson whether the threat of ISIS coming in through Mexico is real.
"We see no specific intelligence or evidence to suggest at present that ISIL is attempting to infiltrate this country through our southern border," Johnson replied, using a different name for the terrorist group.
Other Homeland Security officials have echoed Johnson's assurances. "There is no credible intelligence to suggest that there is an active plot by ISIL to attempt to cross the southern border," the department said in a recent statement.