its design prevents general control. >> the genius of the internet instilled by the architects in its founding is no one can capture it. it's a network of networks. >> reporter: critics say there's other concerns short of outright internet control. >> we get tens of thousands, millions of cyber attacks to our government and to our private sector and i have to believe any relick wishing of control, even the giving out of i.p. addresses and domain names, can be critical to our national security. >> reporter: concern is not exclusive to republicans. >> i thought the system as it was running was doing a fine job. >> reporter: president of icann says this change was planned long before president obama took office and that while authoritarian governments can control what internet comes into their country, they can't control what is beyond their board errs. bret? >> all right, doug. thank you. what do you think? do you think the u.s. has control of the internet, and if so should it relinquish that control? let me know at facebook.com or on twitter @bretbairer.