美政府购买6架波音飞机用于遣返移民

Core Insights - The U.S. Department of Homeland Security has signed a contract worth nearly $140 million to purchase six Boeing 737 aircraft for immigration deportation tasks [1] Group 1: Contract Details - The contract indicates that the Immigration and Customs Enforcement (ICE) plans to further expand its airlift capacity [1] Group 2: Historical Context - Historically, ICE has relied on charter flights for immigration deportation [1]