Joint chiefs chairman in Afghanistan for talks by By ROBERT BURNS BAGRAM, Afghanistan (AP) -- A weekend visit to Afghanistan by the chairman of the Joint Chiefs of Staff is aimed at assessing the type and level of additional training that U.S. troops could provide to Afghan defense forces after 2014.... hosted.ap.org/dynamic/stories/A/AS_AFGHANISTAN_DEMPSEY?SITE=NYWNE&SECTION=HOME&TEMPLATE=DEFAULT