Someone stole 18 of my signed WWII books. Keep an eye out!

Thieves! So my shipment of WWII books to ARRL in CT arrived with only 1 book of 20 (another made it but was damaged)! USPS stamped it "received unsealed". That's insane! It BECAME unsealed in your possession AND you'll ask me "did you get insurance?". WHY do I have to get insurance to get you to do your job? If you see 15+ of my SIGNED books for sale anywhere.... let me know. I'd like to have a word with someone.