FILE - Members of a crowd numbering tens of thousands smoke marijuana and listen to live music at the Denver 420 pro-marijuana rally at Civic Center Park in Denver, April 20, 2013. Marijuana advocates are gearing up for Saturday, April 20, 2024. Known as 4/20, marijuana's high holiday is marked by large crowds gathering in parks, at festivals and on college campuses to smoke together. This year, activists can reflect on how far the movement has come. (AP Photo/Brennan Linsley, File)