US green cards under scrutiny: Why the Trump administration is re-examining 19 countries

US orders green card review New national security measures Policy follows DC security incident Authorities launch investigation Stricter immigration checks planned The Trump administration has announced a sweeping review of green cards issued to immigrants from 19 countries, citing national security concerns. The move follows a shooting incident near the White House in which two National Guard members were attacked, allegedly by an Afghan national. Also Read: US reviewing 'every' Green Card of 1