Live Breaking News & Updates on Marathon bomber tamerlan

cracks just grows. marathon bomber tamerlan tsarnaev london's jihadi john and elton simpson. lone wolves intelligence resources are stretched. each suspect requires a team. >> they need about 30 officers between the numbers of people that are physically surveilling him, three times of four or five so that's already 15 people and then you need people for the electronic surveillance. you need people to actually monitor as well the people is he in contact with. >> reporter: suspects require more resources. >> if that individual is trained in tradecraft and he knows how to detect surveillance or he knows how to take multiple routes and various routes it gets a lot more complicated and you may have to have a lot more teams there. >> reporter: and it all costs. one australian estimate puts 24

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