Recently released FBI files about the Occupy movement do not reveal the kind of dirty tricks J. Edgar Hoover's bureau used against demonstrators in the Bay Area during the '60s, but they present some striking parallels to those dark days and have rightly raised concern among civil libertarians. The records ... show that over the decades the machinery of surveillance remains much the same, even as expanded intelligence powers and technological advances magnify potential abuse. As in the '60s, the FBI reports use sweeping language like potential terrorist threat" to characterize nonviolent dissent. As then, the bureau exchanges information with a vast network of federal agencies, state and local police, campus cops and corporate security. And once again the FBI is invoking great secrecy. Such activity, Congress found in the '70s, contributed to massive intelligence abuses. The FBI released 99 heavily redacted pages and withheld 288 more in response to a Freedom of Information Act request from the Partnership for Civil Justice Fund, a public-interest legal organization in Washington, D.C. Even while noting Occupy organizers do "not condone the use of violence," the records show that FBI field offices across the nation collected information on the premise [that] the protests posed a potential "terrorist" or "criminal" threat. The bureau shared information on Occupy with police on joint terrorism task forces, which have raised concerns about skirting local surveillance restrictions, and with fusion centers, regional intelligence hubs recently criticized by Congress as violating civil liberties.