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[00:00.11]The five Americans, described as Special Operations forces, were taking part in a security operation when they came into contact with the Taliban in the south of the country.
[00:08.82]After calling in air support, it's believed they were hit mistakenly by the B-1 bomber that had come to help.
[00:15.36]Under current operational constraints put in place by outgoing Afghan President Hamid Karazi ¨C air strikes like this are only called in when troops fear they're about to be killed.
[00:25.72]Emily Wither, FOX News Radio.