About those biological weapons in Ukraine... Here's a document you need to read.
https://2001-2009.state.gov/documents/organization/95251.pdf
In 2005, the George W. Bush administration signed an agreement with Ukraine regarding biological weapons:
* Ukraine must move all of their Soviet-era biological weapons to a few central laboratories in Ukraine.
* The US will fund this operation.
* Ukraine will dedicate itself to prevent the proliferation of bioweapon-technology.
(Makes sense, because the GWB-administration worried about terrorists getting their hands on these.)
* Ukraine and US will jointly engage in research how to defend against bioweapons.
* Either side has the right to declare research "confidential" and the other side must abide by that.
This was in 2005, signed by the administration of pro-western ukrainian President Viktor Yushchenko. However, the program was continued by the pro-russian President Viktor Yanukovych.
1. The Ukrainians gave orders to destroy these laboratories to keep them out of russian hands because they are contractually obligated to keep this bioweapon-technology out of
ANYBODY'S hands.
2. The Pentagon made this agreement, instead of a US health agency, because it was part of the broader "War on Terror" of the GWB-administration.
3. The onus isn't on the Russians to prove that there was bioweapons-research conducted in Ukraine. We already know that there was defensive research. The Russians must prove that the bioweapons-research was for
OFFENSIVE purposes.