[Taxacom] Problems with Express Courier International?

[Nicholas Herold]

I have recently received insect specimens sent from Australia to the United
States via Express Courier International for DNA work, but no DNA was
retrievable, despite the seemingly good condition of the specimens. The
package was security screened, and circumstantial evidence leaves me to
suspect that the samples were irradiated on their way through customs, which
would of course wreak havoc on the DNA. Has anyone else had similar
experiences, or can confirm the use of radiation to screen international
samples?

Thank you

Nicholas Herold