Well, I think that sort of thing happens far more often than we'd like to think. I remember my law school experience 25 years ago. We studied a case of a long tubular package shipped via FEDEX that contained cocaine. The truck operator accidentally broke the container and some "product" spilled out. The driver, being a good citizen, alerted the authorities who set up a sting. At the trial the defense asserted that the driver of the FEDEX truck had violated the 4th Amendment protections of the coke dealer.
USSC held that NO that is not true. No private citizen, especially one engaged in the act of lawful commerce can violate the US Constitution, only the government can violate civil rights. How often do you think coke or heroin gets shipped that way today? Sure I'll be that FEDEX got some safeguards to preclude this...but still....
People breaking the law and shipping cocaine and heroin are one thing.
Shipping a nuclear device is something else entirely. Shipping it via FedEx is just plain stupid.
BTW, responded to your friend HipShot. Thanks for the info.