What is Operation Allies Welcome, the program officials say brought the suspect to the US?

The program was launched in 2021 after the US withdrew from Kabul to support vulnerable Afghans, many of whom worked with the US during the war in Afghanistan, to come to the US.

​ The program was launched in 2021 after the US withdrew from Kabul to support vulnerable Afghans, many of whom worked with the US during the war in Afghanistan, to come to the US. Read More Breaking News, Latest News and Videos | CNN