Vetting is usually a detailed process for those seeking entry to the U.S., especially when they are from countries associated with terrorism. On Sept. 1, 2021, then-White House press secretary Jen Psaki was asked about the large number of Afghans who had entered the country under President Biden's "Operation Allies Welcome" (OAW) program. Psaki said: "I can absolutely assure you that no one is coming into the United States of America who has not been through a thorough screening and background check process."

After last week's shooting, Homeland Security Secretary Kristi Noem posted on X that the suspect, Rahmanullah Lakanwal, entered the U.S. one week after Psaki's comment.

More than 190,000 Afghans have been resettled in the U.S. under OAW and another program called Enduring Welcome, a

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