Facebook's next frontier: chatbots, live video |  | SAN FRANCISCO (Reuters) - Facebook Inc said on Tuesday it has opened up its Messenger app to developers to create chatbots, hoping that by simulating one-on-one conversations between users and companies it will expand its reach in customer service and enterprise transactions. | | Pentagon says still not confident about Raytheon GPS control system |  | BUCKLEY AIR FORCE BASE, Colo. (Reuters) - U.S. Deputy Defense Secretary Robert Work on Tuesday said he was still not confident about completion of a long-delayed, over-budget ground-based system being developed by Raytheon Co to control new GPS satellites built by Lockheed Martin Corp. | | |  |  | |  |  | Related Video | |  | |  | |  |  |  | Mediafile | |  | |  | |  |  |  |  |  | A daily digest of breaking business news, coverage of the US economy, major corporate news and the financial markets. Register Today |  | |  |  |  | A quick-fix on the day's news delivered when you want it. Register Today |  | |  | » » MORE NEWSLETTERS |  | |
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