One of the first things they do when they are rotated back to the US is go for new tattoos. Why?

To add new experiences, new chapters, images that came to them in dreams during long nights, half a world away from home. To remember fallen comrades, to add more armor against the horrors of war they've witnessed, to prove they are still alive.

Men who were affected by 9/11. While the rest of the country stood still, mouths agape in horror and disbelief, these men and men like them ran in to the recruitment office, or pressed for transfer to the Rangers, knowing they would be the first to be placed in harm's way, to punish, to retaliate, to bring justice to the world.

In this way, they're not us. They are the best of us.