Nina Bernstein, New York Times, December 20, 2011 Instead of the inflatable rat that has become ho-hum at union protests in New York, a giant three-headed dog with fangs was the effigy on display as about 250 unionized nurses rallied outside the Midtown headquarters of the private equity firm Cerberus Capital Management. Last year the firm added 10 mostly Catholic community hospitals in the Boston area to its portfolio, promising to keep the same level of services or to provide even better services. But carrying signs that proclaimed “Cerberus Is a Lying Dog,” and that urged “Get Wall Street Out of Health Care” ... Nurses