Jeff writes: "In Watch Out You're Being Watched, Seattle Times columnist Danny Westneat relates a story from a community meeting with Northwest border control agents:
"It turns out the feds have been monitoring Interstate 5 for nuclear 'dirty bombs.' They do it with radiation detectors so sensitive it led to the following incident. 'Vehicle goes by at 70 miles per hour...Agent is in the median, a good 80 feet away from the traffic. Signal went off and identified an isotope [in the passing car]. The agent raced after the car, pulling it over not far from the monitoring spot.' Did he find a nuke? 'Turned out to be a cat with cancer that had undergone a radiological treatment three days earlier.'