As for a test of Russia's abandonment of communism and cold war hatred, I would go even further, asking Russia to help the US in imposing a political settlement with Cuba and US weapons inspectors with full access to Cuba's infrastructures (not just UN inspectors because there it is US territory directly that those purely offensive bio-weapons target). But Russia is fundamentaly opposed to political settlements until Russia's friends get their a$$es kicked and they need to be saved. Just ask them to let the Cuban exiles to recoup their losses and to reacquire their assets, and you will see how that goes with Russia's own oligarch. Of course, such weapons inspection would have to occur with some form of US military presence in the region, possibly including nuke strikes on offensive bio-facilities if a rebellion against the resolution occured on the island.
If nations want to build weapons that target effectively America, then those nations' business becomes America's business. There is no going around the need to prevent others from leveraging US politics with pointing their weapons at us. It is one thing to have a defensive force and sovereign militarisation, it is another to constantly acquire America as a target. Purely offensive bio and Chem weapons combined with Castro's overimaginative hatred of America and political vigilatism definitely fit that bill. Moreover, the fate of the Cuban exiles in Florida make the demands even more stringent on Cuba, including forcing the communist oligarch of Cuba to forego their ill acquired assets. After all, it all stems from that unresolved aggression that continues today.
Well, there are only 120+ countries, volunteer for the military and go defend the US by invading all of them. I'm sure you'll make eager cannon fodder.