Fourth of July: drones to replace firework displays due to wildfire risk

Laser light shows and drone displays will replace fireworks across drought-stricken areas of the western US on Independence Day

The night sky above Aspen will light up with a patriotic display this Fourth of July as always - just not with the usual fireworks.

For the first time, the flashes of red, white and blue glowing against the dramatic backdrop of the Rocky Mountains will be provided by drones.