Since Sept. 11, 2001, the institute has worked with local, state and federal agencies on security issues, primarily on wireless technology.
And Fred D. Thompson, the former Tennessee senator, said in an interview on "Fox News Sunday" that Mr. Giuliani has "not five minutes of experience" with federal and national security issues.
In civilian life, Mr. Blair was president of the Institute for Defense Analyses, a nonprofit largely financed by the federal government to analyze national security issues for the Pentagon, from 2003 to 2006.
Charles Sturcken, chief of staff for the city's D.E.P., which owns the watershed property, said that "the target is April 1" for reopening the watershed for recreation, but that the department must consult with federal agencies, including the F.B.I., regarding security issues.
The Council of Governors is a bipartisan group of 10 governors, co-chaired by Washington Gov. Christine Gregoire (D) and Iowa Gov. Terry Branstad (R), which works with the federal government on defense and homeland security issues.
Representative Jim Turner, Democrat of Texas, advocated the creation of a national chief information officer position in the federal government to monitor and coordinate computer security issues.
Those restrictions originated in an era when federal officials were more concerned about national security issues related to foreign investment, experts say.
Federal securities regulators have issued a cease-and-desist order against a large pension consulting firm, Callan Associates, for failing to tell its clients that it had an outside business relationship that could affect the investment advice it gave.
The settlement, which must be approved by the United States District Court for the Southern District of Ohio to be final, involves one of two lawsuits filed in July 2004 contending that the company violated federal securities laws by issuing false or misleading statements concerning its financial results.
The federal government should develop programs to increase awareness of computer security issues.
