Despite images of a nationwide sweep, there is little evidence so far that ICE is arresting, detaining or deporting many more people than usual.

U.S. immigration enforcement officials have been detaining migrants who don’t have criminal backgrounds or orders for removal.

More than 20,000 undocumented immigrants were arrested during Donald Trump’s first month as president, according to the Department of Homeland Security and CNN. The Trump administration launched an immigration crackdown in the moments after his inauguration and publicized daily arrest totals during his first couple of weeks in office.