Probe one of the nation’s most polarizing issues and a key topic in the 2012 election: immigration.

Probe one of the nation’s most polarizing issues and a key topic in the 2012 election: immigration. The two-part series presents contemporary stories of immigrants — legal and illegal — and those who confront them, help them, employ them and craft legislation that affects them. Ray Suarez, senior PBS NEWSHOUR correspondent, narrates.