Johnson & Johnson shares sank 8% Friday after Reuters reported that the pharmaceutical giant knew for decades that its baby powder contained asbestos. Reuters reviewed documents, deposition, and trial testimony from at least 1971 to the early 2000s that it said showed powders and raw talc sometimes tested positively for small traces of asbestos. Furthermore, "company executives, mine managers, scientists, doctors, and lawyers fretted over the problem and how to address it while failing to disclose it to regulators or the public," the Reuters reporter Lisa Girion wrote. Johnson & Johnson issued a statement on Friday in response to the...