Calling it a risk to operational security, the US military has asked journalists to stop using certain satellite telephones. It appears that the phones, as do phones from other providers, calculate the user's position using GPS coordinates. Unlike other phones, though, these phones send that data (accurate to within a hundred yards) to their headquarters for billing, causing concerns among the military leaders that the information may be used for targeting or strategic planning purposes.

Although technical experts claim they don't know how a field technology could be used to pinpoint the transmitters, it cannot be ignored that the headquarters of the company (to which the information is sent) is in Abu Dhabi.

For more information, look at the Reuters Alertnet article.