Well, you can believe what some German automobile club says, or you can talk to the Pentagon - According to the story on New Scientst they've promised not to degrade the signal. "We would not create a global problem for transport out of spite for Saddam," says a spokesman at the US Department of Defence.
An older NewScientist story describes another system that beams ads directly to phones, also via Bluetooth.
According to this safety report(PDF), commissioned by CERN, there is no perceivable threat.
The original article can be found here.
Well, you can believe what some German automobile club says, or you can talk to the Pentagon - According to the story on New Scientst they've promised not to degrade the signal. "We would not create a global problem for transport out of spite for Saddam," says a spokesman at the US Department of Defence.