Companies offer high payments and bring-a-friend bonuses to Mexicans who cross the border on temporary visas to donate blood plasma. The U.S. offers weaker health protections for donors than most countries.
by Stefanie Dodt and Jan Lukas Strozyk, ARD German TV, and Dara Lind, ProPublica Oct. 4, 12:01 p.m.
Read the full article on the Pro Publica website.