If we're going to be able to react, we need to react quickly,

We buy what we think is cheap, ... Our job is to react to other people's overreactions.

[They can be used to react quickly to reports about Taliban and al Qaeda forces in the area, said J. Kelly McCann, a former Marine involved in special operations.] Intelligence is so fluid right now, ... To fit somebody in place in order to go kill them, you've got to be able to respond quickly for that information to be useful. So now with the Marines on the ground you're talking about a reaction time that's under an hour in some cases, maybe minutes.

Each tunnel in the sky must react to other tunnels in the same way as it does to keep clear of terrain.

My head was much more in it. We were able to write very quickly, all four of us in the room, and to do that, you have to be very present and very open-minded.

When you get punched in the gut there are two ways you can react. You can put your fists up and fight or you can run away.