Justice Stephen Breyer

Even though Republican presidential candidate Donald Trump has called for a ban on Muslims entering the United States, U.S. Supreme Court Justice Stephen Breyer doubts that mass internment would happen again in the United States, ABC News' Alexander Mallin reports.

The Supreme Court has never overturned its decision approving of the Roosevelt Administration's detention of Japanese Americans in World War II. But, if mass detention of one group was attempted again in the U.S., Breyer said American courts would likely enforce the country's "'stronger traditions of civil liberties'" that have developed in the intervening 70 years.