James,
I heard you in your recent interview on the SGT Report podcast talking about [the need for] interior blackout material [to stop light from escaping windows when the power grid is down.] What is the name of the material and tape and where can I purchase it? Thanks, Paul Z.
JWR Replies:
You will find the information you need in these archived discussions [1] in SurvivalBlog. Also see this theatrical supply company [2], and specifically this blackout fabric [3] and this blackout tape [4].