A video report on the largest coordinated global engineering project in the history of our species. People across the world are noticing planes crossing back and forth in the sky leaving in their wake a trail of vapor that does not evaporate.

by Ruth Moon
The white trails left in the sky by jets don’t even get a second look from most people. To Vail, Colorado resident Dave Kraft, however, they represent yet another government attempt to test a new weapon on its residents, and June 1 was the biggest attack the area has seen since November.