Outside the district office of Rep. Charles Rangel, Robin Hood Tax Campaigners from National Nurses United (NNU) and Health GAP found an engaged audience today. These residents of New York’s Harlem are wondering when the recovery will arrive. Their neighborhoods are a mix of shuttered brownstones and half-empty condos, a sign of the realty speculation that somehow, someway never brought decent, affordable housing to Manhattan’s northern-most community.