Will immigrant round-ups make America safer?

President Trump has given enforcement agents new authority to arrest almost any undocumented immigrant — even if they're working and paying taxes. Critics say that's a license to pick the "low-hanging fruit," rather than doing the hard work of finding drug dealers and gang members who really are dangerous. Agents themselves say they've been freed from various limits imposed by the Obama Administration, so they're finally able to do their jobs. We hear about that argument, the likely crowding of courts and detention centers and the climate of fear in immigrant communities.