A mother's warning after a passport check: A signature can render your child's document invalid

A Canadian mom has issued a warning to parents travelling with young children after U.S. security officials insisted she sign her son’s passport before boarding a flight, making it invalid and forcing her to pay the fee for a new one. Melissa Biggs from Kingston, Ont., took to Facebook to share her experience, advising parents to keep an extra official document with their child’s passport to show U.S. agents that the travel document does not require a signature. But Passport Canada t