Building a Better Tin Foil Hat

An anonymous reader writes "Now you can wear a Tin Foil Hat and not be subject to ridicule or discomfort." From the article: "This hat -- made from cotten fiber, silver and copper -- will help reduce your brain's exposure to EMF. LessEMF also sells shirts and cell phone covers to accomplish the same thing."

Maybe not so silly...

[fosterNutrition]

Now I admit that I have only done one year of real physics study and am therefore nowhere near an expert on this, but it seems to me that the computer shields they manufacture could actually have a purpose - TEMPEST shields. You know, keep EMF in rather than blocking it out. Of course, they only make monitor ones, but still, a step in the right direction, no?