国民警卫队遭“恐怖袭击”，阿富汗移民将受到影响，华盛顿枪击案导致白宫被封锁

Core Points - A violent shooting incident occurred in Washington D.C., resulting in two National Guard members being ambushed, leading to heightened security measures and concerns regarding immigration policies [1][2] - The shooter, a 29-year-old Afghan national, was part of a resettlement program initiated during the Biden administration, which has now come under scrutiny [2][3] - Following the incident, the White House is expected to adopt a more stringent stance on immigration and refugee policies, particularly concerning Afghan nationals [3] Group 1 - The shooting took place near a busy metro transfer station, just two blocks from the White House, with the assailant engaging in a targeted ambush against the National Guard members [1] - President Trump condemned the attack and ordered the deployment of an additional 500 National Guard troops to Washington D.C., where over 2,000 troops were already stationed [2] - The shooter was identified as Rahmanullah Rakhmanwal, who entered the U.S. under a policy designed to assist Afghan allies, with approximately 76,000 Afghans resettled through this program [2] Group 2 - The Biden administration is tightening its immigration policies, with the U.S. Citizenship and Immigration Services announcing an indefinite suspension of immigration applications from Afghan nationals pending security assessments [3] - The Secretary of Homeland Security indicated that the shooter was among many foreign nationals who received special consideration without thorough vetting during the Biden administration [3] - Advocacy groups have condemned the shooting but urged against stigmatizing the Afghan community in the U.S. as a result of this incident [3]