"[Friday] was definitely an escalation, and I think a necessary one," he said. "We haven't seen any movement at all. [Administrators] continue to claim they don't want any more than dialogue, but we've had all the dialogue there can be."
Illingworth, who has met with the group on a consistent basis for the past several weeks, said he did not consider PSLM's action more forceful than past demonstrations.
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He said Friday's protest fit into "the overall pattern" of the group's campaign.
"They want to go to venues where they can get attention, and they know everybody is paying attention to pre-frosh weekend," he said.