Chemical in antibacterial hand soaps poses health risks, scientists say

November 07, 2013 07:37 PM

UPDATED November 08, 2013 03:01 PM


More Videos

  • How California measures ‘road smoothness’ and why it matters

    California’s newly paved freeways and highways are built to standards of smoothness that are the strictest in the country. Here is how Caltrans tests them.