Very true, but it wasn't necissarily DEVGRU that did the operation. SEALs have been in Afghanistan, Iraq and other places in the region for quite some time. A known example is Operation Red Wing which you can read about in the book Lone Survivor. But, with the information we have about this operation (it has been in the works for several months now), I think its safe to assume it was DEVGRU since every report says the Navy SEALs were involved. It could have been some sort of task force as well, since some reports are stating CIA operatives were there too (as Homan said, which is quoted below).