Does anyone have recent experience shipping a diatom culture outside of the US? I have been struggling to find out if I need to have permits for this. I have looked at the various official government websites, but haven't found anything specifically relating to diatoms, or any phytoplankton for that matter. I'm hoping to be take the culture with me as checked baggage on my flight. This is also not something that comes up on the airlines' websites... Any advice would be much appreciated. Thanks!