Just to warn everyone that if the day ever comes when the Feds go door to door they already use handheld imaging equipment. Customs use them everyday to check imports for banned items hidden inside approved ones. If you hide your newly prohibited property find a way to mask it or move it outside of any search area. I thought I had a great hiding place in a hollow fireplace mantle but was told a search would include walls, ceilings, door frames and just about every inch of property including my mantle.
I believe they will never come to you, they will just prosecute the living hell out of you if they catch you with a prohibited item.