THE TENSION: Combat Camera: Salang Tunnel in the Hindu Kush Mountain Range

Snow covered mountains are shown just outside of Afghanistan's Salang tunnel in the Hindu Kush mountain range Friday. (Photo by Spc. Scott Davis: Combined Joint Task Force 101.)

Soldiers with Alpha Company, 101st Division Special Troop Battalion, 101st Airborne Division drive toward Afghanistan's Salang tunnel in the Hindu Kush mountain range, Friday. The A Co. "Slayer" soldiers were checking on the security efforts for the tunnel. (Photo by Spc. Scott Davis: Combined Joint Task Force 101.)

Soldiers with Alpha Company, 101st Division Special Troop Battalion, 101st Airborne Division rest at Afghanistan's Salang tunnel in the Hindu Kush mountain range, Friday. The A Co. "Slayer" soldiers were checking on the security efforts for the tunnel. Earlier this month, an avalanche outside the south entrance of the tunnel killed at least 10 Afghans and trapping at least another 40. (Photo by Spc. Scott Davis: Combined Joint Task Force 101.)

The entrance to Afghanistan's Salang tunnel inside the Hindu Kush mountain range. This tunnel is one of the highest vehicular tunnels in the world sitting at approximately 10,675ft. (Photo by Spc. Scott Davis: Combined Joint Task Force 101.)