The official in charge of coordinating the U.S. government's cybersecurity operations has quit, saying the expanding control of the National Security Agency over the nation's computer security efforts poses "threats to our democratic processes."

Rod Beckstrom, the head of the Department of Homeland Security's National Cyber Security Center, said last week he would be stepping down effective March 13.

In a letter to Homeland Security Secretary Janet Napolitano, Beckstrom said the NSA "dominates most national cyber efforts" and "effectively controls DHS cyber efforts through detailees, technology insertions and the proposed move" of the NCSC to an NSA facility at the agency's Fort Meade, Md., headquarters.

"I believe this is a bad strategy on multiple grounds," wrote Beckstrom in the letter, a copy of which was posted on the Web by the Wall Street Journal, which first reported the news. "The intelligence culture is very different than a network operations or security culture. In addition, threats to our democratic processes are significant if all top-level government network security and monitoring are handled by any one organization."

Greg Garcia, who was the Bush administration's first presidentially appointed head of cybersecurity at DHS before leaving last December, told United Press International that, while he did not share Beckstrom's anxiety, "I recognize the cautionary flag he is raising."

Beckstrom's resignation comes as the new Obama administration moves to complete a 60-day review of the way cybersecurity efforts are organized in the U.S. government. Successive administrations have wrestled with the complex problem of how to delineate and define the roles of various intelligence, military and security agencies in assuring the integrity of the nation's computer networks -- the vast majority of which are owned and operated by the private sector and depend for their efficacy on their open and accessible, and therefore security-unfriendly, architecture.

"There's been a lot of duplication and not enough coordination," Jessica Herrera-Flanigan, a former senior congressional staffer on the House Homeland Security Committee, told UPI.

Garcia said there had been "a fairly collaborative partnership, not just between NSA and DHS, but … with a whole lot of moving parts" and different agencies within the government.

"Clearly, both operationally and technologically, the Intelligence Community is a key element," he said, using the insider's terms of art for the sprawling and sometimes fractious collection of spy agencies that serve the U.S. government. But he said DHS' role had to be primary "from a legal standpoint and from a trust and privacy standpoint."

"Unlike the (Department of Defense) or the Intelligence Community, DHS has a statutory responsibility to work across all levels of federal, state and local government and the private sector," he said.

DHS has come under fire for its cybersecurity work, with some criticizing an approach they saw characterized by turf squabbles and overlapping and contradictory lines of authority. Some, including most recently Director of National Intelligence Dennis Blair, have called for a greater role for U.S. intelligence agencies in cybersecurity as a result of the 60-day review, which is being led by an official in Blair's office.

Garcia acknowledged what he called "growing pains" in DHS' cybersecurity efforts, but maintained it would be a mistake to shift primary responsibility for the issue away from the department.

"If there were a move," as a result of the 60-day review, "to centralize or focus cybersecurity strategy on the Intelligence Community, that would jeopardize the relationship we (at DHS) built up over several years with the private sector."

Another Bush administration DHS official, former Assistant Secretary for Policy Stewart Baker, told UPI that although Beckstrom's criticism of the NSA's role was receiving more media attention, "I suspect his frustration was driven as much by the funding and organizational issues as by NSA."

In his resignation letter, Beckstrom wrote that "the NCSC did not receive appropriate support inside DHS. … During the past year, the NCSC received only five weeks of funding, due to various roadblocks engineered within the department and by the Office of Management and Budget."

"He came from a very different background" than most federal officials, said Herrera-Flanigan of Beckstrom, who was a Silicon Valley entrepreneur and author before joining the department.

"There was a big challenge" for him in negotiating "the dynamics between the different players" in the department, she said. "Unless he was given the authorities to coordinate across the department, it would have been a problem," she added.

"Rod is a friend and a remarkable talent," said Baker. "He understood Washington much better than most in Silicon Valley. His inability to move the bureaucracy shows how deep is the divide between government and the tech community."

Department spokeswoman Amy Kudwa told UPI that DHS "has a strong relationship with the NSA … and is fully engaged with the 60-day cybersecurity review. … We look forward to our continued, positive working relationship with all our partners on outreach to the private sector as we strive to further secure our nation's cyber networks.

"We thank Rod for his service, and regret his departure," she concluded.

Neither Beckstrom nor the NSA's public affairs office responded to requests for comment.