Apparently they only had to look at the return address to get the name. Someone they say wrote constantly. And no mention of the quantity - full of the stuff (like in the old Anthrax mail scare) or trace amounts. Being it's from the castor bean, there are non-weaponized sources to trip a test. Sorta like going through the airport after doing some reloading earlier. You'll set off every bomb residue sensor in the area. We'll see...