Government Keeps a Secret After Studying Spy Agencies

By SCOTT SHANE

WASHINGTON, April 25 — Concerned about the growing dependence of the nation’s spy agencies on private contractors, top intelligence officials have spent months determining just how many contractors work at the C.I.A., D.I.A., F.B.I., N.S.A. and the rest of the spook alphabet soup.

Now they have an answer. But they cannot reveal it, they say, because America’s enemies might be listening.

Ronald P. Sanders, chief human capital officer for the director of national intelligence, said that because personnel numbers and agency budgets were classified, he could not reveal the contractor count.