"… o represent a foreign interest and engage in political activities before a U.S. official or conduct public relations are required to register with the office.The f …"

"… n.“The CIA is out of the detention and interrogation business,” said a U.S. official who is familiar with intelligence operations but was not authorized to spe …"

"… posure also forced the CIA to close a network of secret prisons. That left U.S. officials with no obvious place to hold new captives.In February, the Los Ange …"

"… artillery shells for chemical weapons that Libya kept secret for decades, U.S. officials said.The shells, which Libya filled with highly toxic mustard agent, were …"

"… shells were custom-designed and produced in Iran for Libya, said a senior U.S. official, one of several who spoke on condition of anonymity because the sensitivit …"

"… poke on condition of anonymity because the sensitivity of the accusation.A U.S. official with access to classified information confirmed there were "serious concer …"

"… n stuff that was not secure, and the world did not know about it," a third U.S. official said. "There were no seals and no inventories" by international inspectors …"

"… and round-the-clock drone surveillance, U.S. and Libyan officials said. A U.S. official with access to classified information confirmed there were "serious concer …"

"… e and use by Hezbollah or other anti-U.S. or anti-Israeli militant groups, U.S. officials fear. This article is based on conversations about international plannin …"

"… sident Assad’s grip over his deadly arsenal comes into greater question, U.S. officials say. Worries about the fate of the chemicals – in a stockpile estimate …"

"… em and produce swift death by paralysis after minute, drop-size exposures, U.S. officials say. Syria devised its nerve weapons as binary agents, in which two less …"

"… rimary concern is a spillover of these things into their territory,” one U.S. official said. The salience of this worry was demonstrated when a Syrian mortar rou …"