This is a guest post by Nataly Kelly, Chief Research Officer at the Boston-based research firm Common Sense Advisory and author of Found in Translation: How Language Shapes Our Lives and Transforms the World (Penguin).
Ms. Barker, after years of living with bunion pain, went to see James Ioli, chief of podiatry at Boston's Brigham and Women's Hospital, who last month performed a common type of osteotomy on her left foot called a chevron.
Authorities say they have no reason to believe the suspect letters are related to the bombing attack at the Boston Marathon on Monday, and they noted that false positive tests for ricin are common.