I can tell you this for certain, don't ask me how I know.
If you have steroids intercepted by Customs they only send you a letter saying they are illegal in the US and you can come claim them if you want. This is of course for a personal order and not a huge box of the shit. I would imagine it's the same for small orders of seeds.
Seeds are so easy to get through the mail though. Has anyone on here ever had their seeds seized?
Thanks for sharing that, it's nice to see some facts here.
Yes, my friend and I had an order seized in 2007, an order to a B.C. seed bank. We too received a letter in the mail, which at the time we scanned and uploaded to (the now defunct) Weedfarmer forums. Nothing further came of it.
People fear what they do not know, so to rid ourselved and the OP of the fear of ordering, lets shed some light on what a customs seizure is, and can lead to (if anything.)