Officials with the revamped ACORN office in New York -- operating as New York Communities for Change -- have fired staff, shredded reams of documents and told workers to blame disgruntled ex-employees for leaking information in an effort to explain away a FoxNews.com report last week on the group’s involvement in Occupy Wall Street protests, according to sources. NYCC also is installing surveillance cameras and recording devices at its Brooklyn offices, removing or packing away supplies bearing the name ACORN and handing out photos of Fox News staff with a stern warning not to talk to the media, the sources...