KIRKUK, Iraq (AFP) - American forces captured the private secretary of Saddam Hussein's longtime deputy in a major operation aimed at netting the key fugitive himself, as Washington's allies fretted over troop deployments in Iraq. And at least one US soldier was killed when two bomb attacks struck military convoys north of Baghdad near the site of deadly clashes Sunday in which US troops said they killed 54 insurgents. Saad Mohammed al-Duri was captured near Hawijah, 45 kilometres (28 miles) west of here, during a day in which rumors flew that his boss, Izzat Ibrahim al-Duri, had been arrested or...