Bigger US role against companies’ cyberthreats?

WASHINGTON — A devel­op­ing Sen­ate plan that would bol­ster the government’s abil­ity to reg­u­late the com­puter secu­rity of com­pa­nies that run crit­i­cal indus­tries is draw­ing strong oppo­si­tion from busi­nesses that say it goes too far and secu­rity experts who believe it should have even more teeth.