CBS News has learned that 13,000+ unaccompanied minors are being held in U.S. custody for an average of 120 hours, far longer than the 72 hours allowed by law.

More migrants are attempting to cross into the U.S. now than in the past 20 years, according to @DHSgov Sec. Mayorkas pic.twitter.com/zEmm4YzI03

— Norah O'Donnell 🇺🇸 (@NorahODonnell) March 16, 2021