The system does has some down sides -- It only updates every five minutes, so troops would still have to contact their commanders before opening fire.

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Facebook says this can be helpful if someone wants to send a message to someone who they say speak at a conference or to contact someone about a job opening.

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The NLRB has said it wants to require employers to give unions seeking to unionize contact information for all workers by the opening of a pre-election hearing.

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The Irish struggled for fluency in the opening minutes as they got pulled into contact by the Italians.

BBC: Ireland 29-11 Italy

Carroll was in the lead group for the opening eight miles but he then lost contact and eventually dropped out just after 16 miles.

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