It is a well known fact that most of the terror related incidents have been traced to Nepal and Bangaldesh . I think limits have crossed now and it is time to shed diplomacy and ultimately cripple the sympathisers . Other points could be that performance of Delhi crime branch has been very good . They have been most successful in pin pointing at least some if the incidents . The Delhi crime branch has the ruthlessness to deal with this situtation and who knows maybe it is time to be that now . We lost 2,200 innocent lives in 2007 !!