Paris Hilton took more than a minute to diaper her newborn son. On a recent episode of the reality show “Paris in Love,” Hilton asked her sister Nicky Hilton, “Should I learn how to change his diaper?

Michelle Cyca, a journalist and mother of two, says she has had one too many public diaper emergencies where she could not find a baby change table — so she launched a website to help other parents in ...