Skip to main content
Back to Show
PBS News Hour

Challenges of determining if someone is too high to drive

As states across the country legalize marijuana, efforts to determine whether someone is too high to drive is becoming a thorny public health issue. From brain functioning analyses and phone apps to training police officers on looking for signs, Hari Sreenivasan reports from Massachusetts, the latest state to start opening marijuana dispensaries, on efforts to resolve the dilemma.

Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By
Season
May 14, 2025 - PBS News Hour full episode
57:46
May 14, 2025 - PBS News Hour full episode
May 13, 2025 - PBS News Hour full episode
57:46
May 13, 2025 - PBS News Hour full episode
May 12, 2025 - PBS News Hour full episode
57:46
May 12, 2025 - PBS News Hour full episode
May 11, 2025 - PBS News Weekend full episode
26:44
May 11, 2025 - PBS News Weekend full episode
May 10, 2025 - PBS News Weekend full episode
26:45
May 10, 2025 - PBS News Weekend full episode
May 9, 2025 - PBS News Hour full episode
57:46
May 9, 2025 - PBS News Hour full episode
May 8, 2025 - PBS News Hour full episode
57:46
May 8, 2025 - PBS News Hour full episode
May 7, 2025 - PBS News Hour full episode
57:46
May 7, 2025 - PBS News Hour full episode
May 6, 2025 - PBS News Hour full episode
57:46
May 6, 2025 - PBS News Hour full episode
May 5, 2025 - PBS News Hour full episode
57:46
May 5, 2025 - PBS News Hour full episode
May 4, 2025 - PBS News Weekend full episode
26:45
May 4, 2025 - PBS News Weekend full episode
May 3, 2025 - PBS News Weekend full episode
26:44
May 3, 2025 - PBS News Weekend full episode
Active loading indicator