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A US soldier advising Iraqi forces is seen in the city of Mosul on June 21, 2017, during the ongoing offensive by Iraqi troops to retake the last district still held by the Islamic State (IS) group. / AFP PHOTO / MOHAMED EL-SHAHED        (Photo credit should read MOHAMED EL-SHAHED/AFP/Getty Images)
A US soldier advising Iraqi forces is seen in the city of Mosul on June 21, 2017, during the ongoing offensive by Iraqi troops to retake the last district still held by the Islamic State (IS) group. / AFP PHOTO / MOHAMED EL-SHAHED        (Photo credit should read MOHAMED EL-SHAHED/AFP/Getty Images)

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    How exercise trackers put US troops at risk

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How exercise trackers put US troops at risk

Some experts fear US troops stationed at overseas bases are in danger because some of their workout routes show up in a worldwide map that tracks routes online.

How exercise trackers put US troops at risk

Some experts fear US troops stationed at overseas bases are in danger because some of their workout routes show up in a worldwide map that tracks routes online.