Seven years after the 9/11 attacks, Osama Bin Laden remains at large and al Qaeda is regaining its strength in Afghanistan. 

According to the AP, 2008 is the deadliest year in Afghanistan since the invasion in 2001. 

An insurgent attack Thursday on a compound in eastern Afghanistan killed a U.S. soldier, bringing the death toll this year to 112 and making 2008 the deadliest for American forces in Afghanistan since the 2001 invasion.

Also, since the winter of 2001, no one knows where Osama Bin Laden is hiding. 

From CBS News:

The last time the U.S. knew for certain bin Laden’s whereabouts, he was leading the battle at Tora Bora. He slipped away, into the mountains along the border shared by Afghanistan and Pakistan. 

The conventional wisdom is that that is where he remains - probably in Pakistan, but the trail is very cold. 

“He’s a good survivalist, a skilled survivalist,” explains Kenneth Katzman of the Congressional Research Service. “He reads about what the U.S. methods are and he’s obviously working very hard to defeat those methods. He’s using personal messengers. He’s not on a cell phone.” 

See a list of all the wanted terrorists by the United States here.