CHICAGO — The music begins low and ominous, with the video showing searchlights skimming along a Chicago apartment building and heavily armed immigration agents storming inside. Guns are drawn. Unmarked cars fill the streets. Agents rappel from a Black Hawk helicopter.

But quickly the soundtrack grows more stirring and the video — edited into a series of dramatic shots and released by the Department of Homeland Security days after the Sept. 30 raid — shows agents leading away shirtless men, their hands zip-tied behind their backs.

Authorities said they were targeting the Venezuelan gang Tren de Aragua, but only two of the 37 immigrants arrested were gang members. The others were in the country illegally, they said, including some with criminal histories. One U.S. citizen was arrested on

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