A small group of overstretched and outmatched lawyers is fighting for the rights of men deported by the Trump administration and held in a notorious Salvadoran prison -- a David vs. Goliath battle that may end up in international courts.
In a half-empty old schoolhouse outside San Salvador, lawyer Rene Valiente is trying to determine the fate of 252 Venezuelan migrants expelled from the United States in March without any kind of court hearing.
