The injuries are typical for victims of improvised explosive devices. The next few days, the next few weeks, will be important to determine how they do.

which could easily be converted into improvised explosive devices.

They're both very seriously injured, but stable.

This is just a chemical reaction, not an improvised explosive device.

Over the next six weeks or so, they'll be inside the pipelines with their electronic equipment and their sounding devices and they'll be testing every foot of this pipeline.

Bob and Doug were up in the hatch. That's when the vehicle hit an improvised explosive device.