As the two nuclear-armed neighbors rattle their sabers in the wake of a terrorist attack on the contested Kashmir region, experts worry that the worst might be yet to come

Following Tuesday's massacre of 26 mostly Indian tourists, hostilities have intensified between India and Pakistan over the hotly contested Kashmir region.

India said on Monday it had responded to 'unprovoked' firing from Pakistan along the de facto border for the fourth consecutive night, as it deepens its search for militants in the region following last week's deadly attack on tourists in Kashmir.