Pakistan, March 21 -- On Wednesday, Prime Minister Shehbaz Sharif unequivocally conveyed that his government would not tolerate any terrorism originating from across the border. On an ideal day, such enunciation might have prompted many to criticise him for toeing an aggressive line, but given the extraordinary circumstances wherein neighbour after neighbour seeks to test Pakistan's resolve towards its sovereignty, this bold stance should scream out a determination to take concerted action against those threatening the stability and security of Pakistan. The prime minister's firm declaration can be traced back to the long-standing issue of cross-border terrorism and the continuous flow of militants and weapons from adjoining countries. Pa...