There are about 52,000 drinking water systems in the U.S. and that fragmentation makes the sector harder to defend, experts say.

U.S. Cyber Command General Paul Nakasone told senators that scaling back his organization's cyber ops authorities would be damaging to its mission.

It's going to track how its recommendations are implemented, and study some issues where it only scratched the surface.

Reps. Jim Langevin and John Katko aren't just experts, they also have a track record of bipartisanship.

Topics on the agenda include critical infrastructure protection and information sharing.

It would be the second major E.O. after a May directive on federal agencies' digital defenses.