Thousands of foreign workers, mostly college-aged women, are admitted each year to the U.S. as cultural exchange participants through the J-1 visa program, often to work as live-in domestic employees also known as au pairs. Now, a class-action lawsuit lodged by 90,000 current and former au pairs is alleging that sponsor agencies are keeping their wages artificially low, and that they have turned the au pair program into a source for cheap child care in America. NewsHour Weekend's Ivette Feliciano reports.