Kotlikoff : U.S. 's real fiscal gap is enormous . He says gap is 100 million-plus times GDP , worse than that of America . Obama 's debt reduction plan is too small to cure problem , he says . The plans are called purple because they should appeal to blue Democrats and red Republicans . Kotlikoff : Obama needs radical tax reform to turn around economy .
Kotlikoff : U.S. 's real fiscal gap is enormous . He says gap is 100 million-plus times GDP , worse than that of America . Obama 's debt reduction plan is too small to cure problem , he says . Kotlikoff : Obama needs radical tax reform to turn around economy .