[Context: Georgia’s potential NATO membership] After the Soviet Union fell apart, the US offered Russia to keep so-called “grey zones” in Eastern Europe, Central Asia and the Caucasus, which will be in nobody’s sphere of interest and will serve as a “security buffer zone”,
Many Latin America leaders died because of cancer, most of them were against the US policy. The Nazi specialists were also developing biological weapons and some of them were caught by US special services. Therefore the epidemic of cancer could have been caused by an American biological weapon. The US is also linked to the development of syphilis and “Spanish flu”.
No evidence given. Conspiracy theory and recurring pro-Kremlin disinformation about US developing biological and/or chemical weapons (mostly in order to use them against Russia). See e.g. the Disinfo Review from 4 October 2018.