"[I]rate public-employee unions are pressing nonprofits such as public television, the Pew Charitable Trusts and the Brookings Institution to stop taking money from the Houston-based organization. The unions argue that the Arnold Foundation is trying to sway public opinion to support replacing public pensions -- which give workers including police, firefighters and teachers guaranteed benefits at retirement -- with defined-contribution accounts similar to 401(k)s, or hybrid approaches."  MORE >>