Particle theorist Paul Frampton of the University of North Carolina was arrested in Buenos Aires January 23rd on charges of attempting to smuggle two kilos of cocaine out of the country. He denies the charges, but is in jail in Argentina, and UNC has suspended his pay since he could not return to teach his spring semester class. More about this here.
I don’t know Frampton personally, but he has commented on the blog here in the past, and is well-known in the particle theory community. He is the author of a standard textbook in the subject Gauge Field Theories.
Update: From reports with more information, like this one, it seems clear that Frampton was the victim of a scam. Hopefully friends and colleagues will be able to help him regain his freedom.