If Social Security reform is political dynamite, the battle over whether to raise the retirement age may be the fuse. I got a hint of the passion behind this issue at an Urban Institute panel I moderated yesterday on Capitol Hill. In recent weeks, both Steny Hoyer (D-MD), who is the number #2 House Democrat, and John Boehner (R-OH), the top House Republican, have put the idea on the table. Ah, you say, there is finally bipartisan support for something in Washington. Not so fast. Both are far out on a legislative limb with little public support from fellow lawmakers.