As NPR's senior national correspondent, Linda Wertheimer travels the country and the globe for NPR News, bringing her unique insights and wealth of experience to bear on the day's top news stories.
The agency's decision allows California — which has some of the nation's worst air pollution — to require truck manufacturers to sell more zero-emission trucks over the next couple of decades.
A conspiracy theory that claims governments are trying to enslave people and force them to eat bugs has made the leap from online message boards to national politics in at least two countries.