Your observation this afternoon about GPS jamming, the cell phone activated attacks and all the ships out at sea is very interesting. I haven't been able to get it out of my mind. You're right, they've been announcing expected interuption of service on the local radio. Maybe I'll head to the mountains this 4th of July rather than the beach. In any event I don't think I want to be near a harbor.
The GPS jamming and cell phone disruptions are due to military exercises and tests that are being conducted to jam navigational satellites to enhance defense capabilities. Although it's inconvenient, I think that we will be safer as a result. Here's an article about it:
Military testing system designed to jam GPS signals off coast
Wilmington, North Carolina-AP -- Military officials have begun testing a system designed to jam signals from navigational satellites.
The experiment could disable boaters' G-P-S devices and force them to rely on dead reckoning.
The Coast Guard says G-P-S signals will be unreliable or unavailable in waters up to 60 miles off North Carolina and along the Florida coast. The testing may affect cell phones as well as navigation devices in boats, airplanes or cars.
The military began testing the new system today. Tests will run through June 20th as part of a NATO training exercise.
http://www.kpho.com/global/story.asp?s=1936196&ClientType=Printable