In Iran, the Struggle for Power Continues

President Mahmoud Ahmadinejad has flown to Russia for a previously scheduled meeting, but in Iran itself it's anything but business as usual. Foreign journalists are restricted today, but social-networking web sites like Facebook and Twitter are full of reports and pictures, of new demonstrations in Tehran and elsewhere, both for and against the government. The Guardian Council has ordered a partial recount of last week's voting, but the official loser wants a new election. Central authority is under more pressure for change than at any time since the Islamic revolution in 1979.  We get assessments from several points of view.