Terror plot investigation 'multifaceted and international'

The investigation into who masterminded and bankrolled the plane bombing plot will be a global and multifaceted probe led by British, US and Pakistani authorities but reliant on intelligence from other countries, counterterrorism experts said Friday.

Investigators are working on three key fronts: combing through forensic evidence, interrogating suspects and sifting through seized assets to see where the money trail leads.