The U.S. sent 238 Venezuelan migrants to a Salvadoran mega-prison. The Trump administration says they're all gang members, but 60 Minutes could find no criminal records for 75 percent of them.

Three weeks ago, 238 Venezuelan migrants were flown from Texas to a maximum security prison in El Salvador.

That country’s president offered to take them and the Trump administration used a law not invoked since World War II to send them – claiming they are all terrorists and violent gang members.

The government has released very little information about the men. But through internal government documents, we have obtained a list of their identities and found that an overwhelming majority have no apparent criminal convictions or even criminal charges.