Under some interpretations of Islamic law, dogs are considered unclean animals. (N.B.: As with many aspects of the Holy Quran, there is considerable, complex debate over this. You can read examples here, here and here.)
A story first appeared in The Guardian on November 20 revealing the use of bomb-sniffing security dogs by Iranian president Mahmoud Ahmadinejad's security detail. Now, Radio Free Europe/Radio Liberty is reporting that Iranian blogger Reza Valizadeh is being detained by authorities after blogging about the purchase of 4 German dogs by the president's security staff.
Arash Kamangir reports on Arabisto.com that Valizadeh is being held on charges of "acting against public security as well as disruption of public opinion."
From the Radio Free Europe/Radio Liberty report:
Valizadeh's arrest comes two days after dozens of Iranian journalists and intellectuals issued a statement to protest the jailing of journalists who are critical of the Iranian government.
One of the signatories, journalist Issa Saharkhiz, told Radio Farda on November 26 that a government crackdown on journalists has intensified in recent months. "There are some who are sitting and thinking of ways to fill up Iran's prisons. Unfortunately, we now see this not only in Tehran but also in the provinces," Saharkhiz said.
Saharkhiz added that journalists and media workers have lost their jobs as a result, and society has been limited to a "single voice."