GUESTS: David Keating Executive Vice President, National Taxpayers Union Lee Monks Taxpayer Advocate A three-day review of the IRS opened Tuesday on Capitol Hill. The Senate is investigating complaints from taxpayers who say the IRS is abusing its power. Some tax collectors have been accused of targeting lower income taxpayers - without the resources to fight back - in order to meet quotas. The hearings could lead to a vast overhaul of the tax collecting agency. Join Ray Suarez and guests for a look into the tax collecting practices of the IRS ...on the next Talk of the Nation, from NPR News.