Iranians work at an internet cafe in Tehran Tuesday Aug. 8, 2006. Iranian authorities are stepping up arrests and pressure on popular bloggers as part of a wider internet clampdown launched after hard-liner Mahmoud Ahmadinejad became president last year, ending years of freewheeling web access that once made Iran among the most vibrant online locales in the Middle East.(AP Photo/Hasan Sarbakhshian)