By Rose Horowitch WASHINGTON (Reuters) – A U.S. congressional committee has asked data brokers and personal health apps to tell how they handle users’ reproductive health data amid concerns states will use the information to track patients seeking abortion where it is illegal. Democrats on the House of Representatives Oversight Committee said they were concerned that location data, search history and other information on mobile phones could create “digital bread crumbs” that reveal interest in an abortion. “The collection of sensitive data could pose serious threats to those seeking reproducti…