Dr. Meryl Nass, MD exposes the serious risk of blood clots – including clots on the brain – that the evidence shows, but that the public is not informed about. She notes that this may be a risk posed by all 4 currently used Covid-19 vaccines – Astra-Zeneca, Johnson & Johnson, Pfizer BioNTech, & Moderna. So what are the leaders of the “free world” doing about it?