USAF Begins Massive GPS Blackouts In The Western US During Largest Ever Air War Drill
www.zerohedge.com/news/2018-01-26/usaf-begins-massive-gps-blackouts-western-us-during-largest-ever-air-war-drill
Air drill called Red Flag (largest of it's kind in 42 year history), lasting from Jan 26- Feb 16, performed during GPS [blackout].
>"this exercise will last a lengthy three weeks and could pose significant risks and threats to devices that rely on GPS signals, which according to the DHS chart below, is pretty much anything with electronics in it these days."