From the Haqqani network to the Afghan Taliban, a look at a splintered enemy.
By Peter Bergen<p>
Peter Bergen, a frequent visitor to Afghanistan since
1993, is author of Manhunt: The Ten-Year Search for bin Laden
from 9/11 to Abbottabad.
, Brian Fishman <p>
is a counterterrorism research fellow at the New America Foundation.
, Katherine Tiedemann