Washington — Boeing CEO Dave Calhoun was on Capitol Hill Wednesday trying to reassure key senators that the company's planes are safe, after an incident earlier this month in which the door panel of a ...

Question (n.) early 13., “philosophical or theological problem,” early 14c. “utterance meant to elicit an answer or discussion,” “a difficulty, a doubt ...

Regular quality control testing of medical radiological equipment has been shown to improve clinical image quality and reduce patient radiation exposure. Unfortunately is has been largely overlooked ...