India, March 13 -- Pakistan's security establishment is grappling with one of its worst terrorism-related incidents in decades after militants in Balochistan took hundreds of people hostage. In an audacious attack on Tuesday, the militants targeted the Jaffar Express travelling from Quetta to Peshawar and took more than 400 people, many of them soldiers, hostage. Pakistani security forces freed more than 150 hostages by Wednesday and killed 27 militants, though 10 people also lost their lives in the fighting. The outlawed Balochistan Liberation Army (BLA), which seeks Balochistan's secession from Pakistan, has claimed responsibility for the attack and reports suggest the group could still be holding up to 300 hostages. Such a hostage crisis is unprecedented in Pakistan's recent history, even after the flare-up of terrorism following the Lal Masjid episode of 2007 and subsequent Taliban take-over of the northwestern Swat Valley....