If so, his grasp on it may be disquietingly flaccid. From a story at http://www.nytimes.com/2009/01/14/us/politics/14geithner.html?_r=1&ref=us: WASHINGTON — Timothy F. Geithner, President-elect Barack Obama ’s choice for Treasury secretary, failed to pay more than $34,000 in federal taxes over... Sign in to see full entry.