(Maxine Wallace/The Washington Post)
The former official avoided all questions at a hearing after alleging Sen. Rand Paul was seeking to wrongly trap him with perjury charges.
By Dan Diamond and Anna Liss-Roy
Carolyn Hax and Haben Kelati
Daniel Wolfe and Frank Hulley-Jones
(The Washington Post)
Stanford University scientists’ new model estimates exposure to the pollutant nitrogen dioxide based on home size, how often the stove is used and where people live.
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