Along one of South Asia's most contested frontiers, Pakistan and the Afghan Taliban find themselves once again trading accusations rather than fire — or perhaps both. On Wednesday, Islamabad claimed Taliban artillery struck its border posts in an unprovoked attack; Kabul denied it entirely. The dispute, unresolved and unverified, settles into a long pattern of mutual suspicion between two neighbors whose relationship has never quite found peace, and whose shared border remains a place where truth itself is difficult to locate.