KHARTOUM, Sudan (AP) — Armed men stormed an aid agency compound in Darfur and kidnapped three Westerners, heightening fears that foreigners will be targeted in the backlash over the international arrest warrant for Sudan’s president. The three workers for Doctors Without Borders were kidnapped late Wednesday in a government-controlled area in northern Darfur, close to a stronghold of government-allied Arab militiamen known as janjaweed. The Sudanese government condemned the attack and denied any involvement.