The following is a CPJ Blog post by Robert Mahoney, CPJ Deputy Director:

Glenn Greenwald would like to go home to the United States, at least for a visit. But the Guardian journalist and blogger is afraid to do so. He still has material and unpublished stories from his contacts with fugitive whistleblower Edward Snowden that he believes U.S. authorities would love to get their hands on. The nine-hour detention and interrogation of Greenwald's Brazilian partner David Miranda by British security services at London's Heathrow airport in August has only compounded his fears.

"I have been told by pretty much everybody I have asked, including lawyers for the Guardian, my personal lawyer, lawyers I trust, political people who are well connected that it would be very ill-advised for me to travel back to the United States right now because the chances that I would be arrested are something more than trivial," Greenwald told CPJ in Rio de Janeiro.

Read the full story on CPJ's site