OTTAWA—The House of Commons ethics committee has called for a halt to the Public Health Agency of Canada’s plans to collect data from millions of mobile phones as a way to understand travel patterns during the COVID-19 pandemic. The committee passed a motion Monday calling on the federal government to suspend plans to extend the collection of cellphone location data until its members are satisfied the privacy of Canadians will not be affected. In December, the federal public health agency issued a new request for proposals to track countrywide cell tower-based location data between Jan. 1, 2019 and May 31, 2023. The notice said the data must be accurate, accessible and timely, as well as ensuring privacy and transparency. It must also be stripped of all identifying information. The news prompted the ethics committee to hold an emergency meeting during Parliament’s winter break, where Conservative, Bloc Quebecois and NDP MPs …