I think it was an interview with Robert Malone, where he mentioned the vaxx issues could be even worse than we know, given how one demographic that was most likely to take the vaxx could be dying suddenly without raising any alarm bells. That is, the elderly. When a 70 year old gets a heart attack, nobody is surprised. Which means that any of them who are getting heart issues due to the vaxx (or rather accelerating any issues) will go well under the radar.