Osama Suspected of Hiding on Afghan Border - Forbes.com: Katherine Shrader
"Osama bin Laden is hiding in a remote tribal area along Afghanistan's 1,500-mile border with Pakistan, separated from his top deputy and, in a sign he has to be careful about whom he trusts, surrounded by fellow Arabs. His No. 2, Ayman al-Zawahri, is hiding in a more settled area along the border, surrounded by al-Qaida operatives of his Egyptian nationality, according to U.S. intelligence officials familiar with his pursuit.
Their separation has opened a debate in national security circles in the United States and elsewhere about whether the leaders have split up."