Global cooperation is a “necessity” for tackling terrorism and radicalisation and every country should share their experiences in order to keep a step ahead of techniques adopted by terror outfits, National Investigation Agency (NIA) chief Y C Modi stated on December 4, at the concluding day of a two-day (December 3-4) conference — “Investigating ISIS networks” — organised by the European Union (EU) and the NIA held in New Delhi, reports Daily Excelsior. Modi said there were no boundaries for terrorism which makes it imperative for global cooperation to fight the menace.