Over the past few years, the theocracy has increasingly cracked down on journalists:
The pattern of rotating critical journalists in and out of prison has sown fear and self-censorship across the entire press corps, according to [Committee To Protect Journalists (CPJ)] research. At least 68 Iranian journalists fled into exile between 2007 and 2012 due to harassment and the threat of imprisonment, according to CPJ research. Only Somali journalists have gone into exile in higher numbers during that period.
(Hat tip: Max Fisher)