At least 28 people were killed in the blast outside a Shiite mosque as people were leaving evening prayers. Sunday's attack follows an attack on Shiite Hazaras in Quetta last month that killed more than 90 people.
In the first interview the Romneys have given since their November loss, they say they're moving on.
Advocates say the developed world's desire to light up the night is having some unintended consequences. This summer, Paris will try dimming its street lights, turning it into the City of [Fewer] Lights.
Elizabeth II is being treated for symptoms of gastroenteritis. She is expected to remain under observation for about two days.