Marc,
I`ve been following your ordeal for some days... I also have a very sad story concerning homeland security and TS. Every time I travel to the US I normally have a shopping spree of TS to bring back in my checked luggage, where I extra-carefully wrap and place these items. On my last trip when I arrived and opened my bags, both had a leaflet stating that it was opened, searched and checked. To my total bewilderment I had 3 major headaches: 2 beyond repair broken and dented soldiers that obviously suffered a major fall and a MISSING tank turret; believe it or not, my summer panther became turretless, its gun forgotten on some behind the scene checked luggage x-ray bench at the Kennedy Airport in NYC by a careless HS employee, never to be found...
I still wonder what kind of threat could those TS in my luggage pose... just like you tank in the mail. You have my deepest sympathy!