Rumsfeld flies to IraqBAGHDAD, Iraq — Secretary of Defence Donald H. Rumsfeld, with only days left in office, paid a surprise farewell visit to US troops in Iraq this weekend, telling them the consequences of the war’s failure would be “unacceptable.” — Page 16Turmoil worsens in DarfurKHARTOUM, Sudan — Turmoil in Darfur worsened yesterday when civilians assaulted African Union peacekeepers and the withdrawal of aid workers continued after 30 people were killed in ambushes. — Page 71