Massachusetts August 26, 2021 6:13 pm ‘Milk Crate Challenge' Prompts Warnings Parents, police and kids who have tried the “milk crate challenge” warn that the new trend on social media is dangerous. US & World Videos 4:15 Karen Read trial | Breaking down evidence testimony in court Wednesday 1:29 Sumner Tunnel in Boston to close for one month 2:17 Police testimony continues in Karen Read murder trial 2:03 Mass. school officials threaten to suspend student protesters 2:13 Karen Read trial Day 6: Witness testimony resumes