Fascinating find! Will you at some point cover the 2011 "Key Response Planning Factors for the Aftermath of Nuclear Terrorism" that FEMA/LLNL/SNL put out? [irp.fas.org/agency/dhs/…] I read that just after moving to DC originally and its look at (among other things) the protection against blast, radiation, and fallout offered by a typical Columbia Heights rowhouse was...eye-opening.