President Obama turns his attention back to his economic agenda Thursday when he travels to Austin, Texas, where he will visit a technology high school and a company that makes the machines that make silicon chips.
The White House says the trip is part of Obama's Middle Class Jobs and Opportunity Tour. It also appears to be an effort by the president to get back to the issues Americans care most about.
Some critics say that ending polio has become Bill Gates' "white whale."
Why not just settle for the huge drop in polio cases that we've seen over the past decade and then spend money on other things that kill so many more kids, like diarrhea and malnutrition?
"Polio is special," Gates tells NPR's Robert Siegel on All Things Considered. "Once you get it done, you save $2 billion a year that will be applied to those other activities. There's no better deal economically to getting to zero."