The Kiplinger Letter for Sept. 16, 2011, states: GDP is likely to grow no more than 2 percent. ... Such weakness usually spells recession ahead. ... But that pattern may not apply this time. Slowing growth may instead spell stagnation, a time more akin to Japan's 20 years of weak GDP gains. .... There has been no real bounce-back from the 2007-2008 slump. Twenty years of stagnation? So let me ask you all this: What is it that this economy has in common with Japan? What is it that this economy has in common with the last stagnation of the...