Russia has claimed that the US and Ukraine were working on bioweapons in labs across Ukraine, dangerous disinformation being used in part to justify the Russian invasion. Biosecurity expert Gigi Gronvall returns to the podcast to talk with Lindsay Smith Rogers about the dangers of this disinformation, the attempted cover-up of a 1979 bioweapons anthrax accident in Russia, why biosecure labs are so critical to public health, and the potential impacts of this disinformation campaign.