http://www.csmonitor.com/2006/0630/p02s01-usfp.html
Mark Sappenfield and Mark Clayton
Terrorists already know US monitors their transactions. But revelations complicate US intelligence-gathering. The news media's recent disclosures of classified intelligence do "great harm" to US security, the Bush administration maintains. The assertion is difficult to dispute, since nobody outside America's spy agencies knows for sure whether the leaks have caused terrorists to cover their tracks. But analysts and former intelligence officials suggest that the real harm of untimely disclosures lies elsewhere. "The damage from this, if there is damage, is in the question of whether foreign governments and sources can trust the US to protect sensitive information," says Larry Johnson, a security consultant who worked for the CIA and the State Department's Office of Counter Terrorism. "
