Today on NOW with Dave Brown: researchers in New Brunswick are studying the barriers of transportation and the built environment. Kaitlyn Layden and Paul Polley explain why your participation is needed. Doors Open Ontario is back! David Leonard tells you what historical sites are offered this year. Plus, B.C. wants to recriminalize drug use in public spaces. Garth Mullins from Vancouver Area Network of Drug Users reacts to the news. This is the May 1, 2024, episode.