The scrutiny follows reports of suspiciously-timed bets and trades tied to Middle East tensions US diplomats have been warned against using confidential government information to place wagers tied to the Iran talks, the Wall Street Journal has reported. The warning comes amid growing scrutiny over suspiciously timed bets and trades linked to the war in the Middle East.  The US State Department has issued a memorandum reminding employees worldwide that using undisclosed official information for