US official sees tighter sanctions on Iran without deal

U.S. Energy Secretary Chris Wright launched a nearly two-week tour of three Middle East countries, including Saudi Arabia, marking his first visit as a U.S. official to the de facto leader of the Organization of the Petroleum Exporting Countries. "So absolutely, I would expect very tight sanctions on Iran, and hopefully drive them to abandon their nuclear program," Wright said in an interview with CNBC (Read more at AOL).