Should have let him go but forever, no return to United States possible.
Check it out:

A Texas man pleaded guilty Friday to attempting to aid Sunni militant group the Islamic State in Iraq and Syria (ISIS), federal prosecutors said.

Michael Wolfe, 23, said he planned to travel to the Middle East to provide material support to ISIS. He was arrested last week at the George H.W. Bush Houston Intercontinental Airport.

“Appearing before United States Magistrate Judge Mark Lane, Wolfe admitted that from August 2013 to June 17, 2014, he planned to travel to the Middle East to provide his services to a foreign terrorist organization, namely, the Islamic State of Iraq and al-Sham/Syria (ISIS) and to engage in violent jihad in Syria,” the U.S. Attorney’s Office for the Western District of Texas said in a statement.