Across the country, aging dams are reaching the end of their lifespan, and must be either removed or rebuilt -- at very significant cost. One dam in Minnesota raises issues of public tax dollars being spent to benefit the rich -- and puts a political problem squarely in the lap of aspiring GOP tea-bagger Gov. Tim Pawlenty.

Marc Hequet reports for DC Bureau April 13, 2010.

Source: DC Bureau, 04/15/2010