BRIDGETOWN, Barbados - LAST WEEK the insidious nature of terrorism raised its ugly head in Britain reaffirming the point that national security is going to be a constant challenge to most countries for the foreseeable future. The mantra after the 9/11 attack on the World Trade Centre in the United States has been that there will be no negotiating with terrorists. Despite the response by force, there is no doubt that the scourge is spreading unchecked. However, there seems to be a softening of this position after the just-concluded election in Pakistan where the incoming government has extended an olive branch to the militants who tried to disrupt elections there.