特朗普政府正在利用近期频发的枪击事件推动其加强移民管控的议程。 当地时间12月18日，美国国土安全部部长诺姆发文称美国政府将暂停"多元化移民签证计划"，理由是布 朗大学枪击案的嫌疑人瓦伦特于2017年通过该计划进入美国，并获得"绿卡"。 "这个可恶的人本不该被允许进入我们的国家。"诺姆表示，她已经指示美国公民及移民服务局 （USCIS）暂停该项目，"以确保不再有美国人因这一灾难性项目而受到伤害"。 何为多元化移民签证计划？ "多元化移民签证抽签项目"（DV，又被称为"绿卡抽签"）是美国国会1990年通过的移民法的一部分。 联邦政府据此每年以抽签方式从赴美移民比例较低的国家和地区的绿卡申请者中选取最多5.5万人，向 其发放绿卡。 美国总统特朗普长期批评该项目，认为其有安全风险，并且不像基于一些就业的签证那样充分基于能 力。他在第一任期就尝试结束该项目。2017年10月，一名男子驾驶一辆小型卡车在纽约市世贸中心附近 道路上连撞多人，导致8人死亡。嫌疑人赛富洛·赛波夫是一名29岁的乌兹别克斯坦移民，2010年通 过"绿卡抽签"项目取得永久居留签证，合法移民美国。特朗普随后表示，将要求国会立即采取行动终 止"绿卡抽签 ...

Core Viewpoint - The U.S. Supreme Court ruled in favor of Trump's birthright citizenship policy, limiting the scope of lower court injunctions and preventing federal judges from using broad judicial relief measures in this case [1] Group 1 - The Supreme Court's decision does not immediately implement Trump's policy nor resolve its legality [1] - The ruling allows the Trump administration's request to restrict the effectiveness of three previously issued nationwide injunctions [1] - The executive order, signed on Trump's first day in office, directs federal agencies to deny citizenship to children born in the U.S. if at least one parent is not a U.S. citizen or lawful permanent resident [1] Group 2 - The plaintiffs estimate that this directive could strip over 150,000 newborns of their citizenship rights each year [1] - The unusual aspect of the Supreme Court's review is the Trump administration's argument that federal judges lack the authority to issue nationwide injunctions and should support the president's directive without weighing its legal merits [1]