In a major move following the shocking attack on National Guard troops in Washington, the Trump administration announced a full review of the immigration status of permanent residents, or "Green Card" holders, from Afghanistan and 18 other countries.

The detained suspect in Wednesday's shooting has been identified as a 29-year-old Afghan national who previously worked with American forces in Afghanistan. While the suspect had been granted asylum earlier this year, he did not hold permanent residency, according to AfghanEvac, an organization supporting Afghans resettled in the U.S. after the 2021 Taliban takeover.

"I have directed a full-scale, rigorous reexamination of every Green Card for every alien from every country of concern," said Joseph Edlow, director of the U.S. Customs and Immigration Services (USCIS), during a statement on X.

When pressed for details about which countries are included, a USCIS spokesperson referenced President Donald Trump's June executive order, which identifies 19 nations as "of Identified Concern." The order had previously banned the entry of nearly all nationals from 12 countries, including Afghanistan, Myanmar, Chad, Congo-Brazzaville, Equatorial Guinea, Eritrea, Haiti, Iran, Libya, Somalia, Sudan, and Yemen.

Additionally, Trump imposed a partial travel ban on seven other countries: Burundi, Cuba, Laos, Sierra Leone, Togo, Turkmenistan, and Venezuela. Some temporary work visas from these countries are still permitted.