How Trump is building a border wall that no one can see
Excerpt: Arrests by Immigration and Customs Enforcement are up more than 40 percent this year, and the agency wants to more than double its staff by 2023, according to a federal contracting notice published this month. ICE is calling for a major increase in workplace raids and has signed more than two dozen agreements with state and local governments that want to help arrest and detain undocumented residents. . . . Illegal crossings along the border with Mexico have plunged to their lowest level in 45 years, and U.S. agents are catching a far greater share of those attempting to sneak in.