Thailand's government warns FB users they could face criminal prosecution "if they press 'share' or 'like' on images or articles considered unflattering to the Thai monarchy."

Even more alarming, this was used against a Thai-born US citizen who wrote a book about the Thai monarchy while living in the US, then was arrested when he visited Thailand for medical reasons.

A few related stories from the NYT:

"American Arrested for Insulting Thai King", 27 May 2011
"A High-Tech War Against Slights to a Centuries-Old Monarchy", 2 Oct 2011
"20-Year Sentence for Text Messages Against Thai King", 23 Nov 2011

(Via /.)