Toilets, as most of us know them, haven't changed much since the 1800s--they use a lot of water, and require an infrastructure that many communities can't afford. Ira Flatow and guests look at the problem of access to sanitation, and how engineers are making toilets better.
Profits for the nation's carmakers are on the rise, but after years of doing more with less, higher profits are unlikely to translate into significant numbers of new jobs. There are eight fewer plants and hundreds of thousands fewer workers in the industry than before the Great Recession.