whether or not there's a network involved. not just a one-man show. >> absolutely. they want to know if there's a cell in toronto and if there is, they want to destroy it. >> maria: and in terms, your thousand on how severe the threat is in the u.s.? >> it's really a conundrum. the fact is, we have a good handle on who are members of the organization. it's the self-radicalized people that keep us up at night. they don't have to give orders. they can get in a van and do it. >> maria: thanks, howard. appreciate it. >> thank you. >> maria: howard safir right there. and trace gallagher with additional developments in toronto. trace? >> watching the press conference are astounding.