* Dr. Crownover inserts: “Readings in airplanes with the pancake detector would be sensitive to position (e.g., aisle or window seat, but more importantly the detector would not respond to the full spectrum of radiation in the air which is very different than on the ground . . . Also, radiation exposure on aircraft is sensitive to the 11 year solar cycle and also to solar particle events or ‘space weather’ . . . In Europe there is, or was, a phone number that sensitive travelers can call to determine whether they should delay flying for a few hours (particularly pregnant women).”