US Secretary of State Condoleezza Rice has made a surprise visit to Iraq, where insurgent attacks have killed more than 400 people so far this month. A heavily guarded Ms. Rice first stopped in northern Iraq Sunday for talks with Kurdish leader Massoud Barzani. She then met Prime Minister Ibrahim al-Jaafari in Baghdad. Ms. Rice praised Iraq for forming a government that includes the country's main ethnic and religious groups. Meanwhile, US National Security Advisor Stephen Hadley says he can not confirm reports that terror leader Musab al-Zarqawi was seriously wounded west of Baghdad. London's Sunday Times (newspaper) quoted an Iraqi doctor who says he treated Zarqawi Wednesday at a Ramadi hospital. The report says the doctor was debriefed by US authorities Friday.