Surely the member would admit that we should not prejudge the inquiry and that there were some students or even non-students who were members of groups such as the International Socialist Workers Party and other radical organizations who were clearly there to disrupt the summit, posing a security threat and tearing down a security wall separating them from heads of states.
The safety of the heads of states was put at risk by people
( z1 put :ARG0 ( z2 person ) :ARG1 ( z3 safe :ARG1 ( z4 person :ARG0-of ( z5 have-org-role :ARG2 ( z6 head-of-state ) ) ) ) :ARG2 ( z7 risk ) )