USA Update Philadelphia food truck explosion: How safe are mobile kitchens? (+video)

Food trucks are big business in the US, but an explosion at a Philadelphia food truck that injured at least 11 people has raised questions about the safety of kitchens on wheels.

By , Staff writer

C.F. Sanchez/Philadelphia Daily News/AP

The fiery explosion of a propane tank on a food truck in Philadelphia raises questions about safety regulations for mobile kitchens.