Defense Secretary Robert Gates has not yet made a final decision about establishing a new major command in charge of cyber defense, Deputy Defense Secretary William Lynn said.
DOD will continue to focus on its .mil domain, while primary responsibility for the civilian .gov domain will remain with the Department of Homeland Security, he said. The private sector will be responsible for the rest of the country’s Internet infrastructure. He said DOD and the National Security Agency NSA0 would be available to lend their expertise in cyber defense “in a way that upholds and respects our civil liberties.”He also stated that coordinating the efforts of the different sectors and overseeing their cooperation would be the job of the White House cyber coordinator, a position President Barack Obama announced last month.
More details here : http://www.gcn.com/Articles/2009/06/15/Web-DOD-cyber-command.aspx