Wyoming

Conflict & Justice

Strands of Evidence: Hair Forensics

What you eat ends up in your hair. Scientists in the US and Europe have used this basic idea to devise a sort of hair-based GPS tracking system. Law enforcement agencies are now using this technique to solve crimes. NOVA's Ari Daniel Shapiro reports.

Lifestyle & Belief

Canadian highway

Drifting snow and white out conditions caused havoc yesterday on Highway 402. Hundreds of motorists were stranded there in a nasty snowstorm. Some had to be rescued by military helicopters and four wheel drive vehicles. Where would you find Highway 402?

Conflict & Justice

Strands of Evidence: Hair Forensics

What you eat ends up in your hair. Scientists in the US and Europe have used this basic idea to devise a sort of hair-based GPS tracking system. Law enforcement agencies are now using this technique to solve crimes. NOVA's Ari Daniel Shapiro reports.

Lifestyle & Belief

Canadian highway

Drifting snow and white out conditions caused havoc yesterday on Highway 402. Hundreds of motorists were stranded there in a nasty snowstorm. Some had to be rescued by military helicopters and four wheel drive vehicles. Where would you find Highway 402?