Canadian nurses cross border to care for American patients: "It's not a border, just a line we cross"

Detroit nurse Brent Gale's commute typically starts at 6 a.m. – and in another country. He works at St. Mary Mercy Livonia Hospital in Metro Detroit but lives across the Detroit River in Windsor, Canada.

Many of Gale's patients often forget that he isn't from the U.S. until he says "about" or uses Canadian expressions, he says. "I cross that international border every day, so when someone here says they were late because of traffic, I'm like, 'I came from another country,'" he told CBS News' Adriana Diaz.