The following interchange between Foresight President Christine Peterson and Our Molecular Future author Douglas Mulhall resulted from a Small Times column by Mulhall titled Incorporate disassembly into every self-assembled nanotech product, first brought to our attention by Senior Associate Robert Bradbury. In this article, Doug Mulhall says that nanotech products are already being produced which cannot be disassembled by current technologies, even incineration or (presumably) by acids, etc. Foresight President Christine Peterson asks readers whether this is true; can examples be cited? "This seems unlikely to me, but I'm willing to be educated if there are indeed examples of this."