With 100 days until the Tokyo Olympics, Japan has vaccinated less than 1% of its population. That's a problem

With 100 days to go until the Games, already postponed a year due to the coronavirus pandemic, questions remain over how Tokyo can hold a massive sporting event and keep volunteers, athletes, officials -- and the Japanese public -- safe from Covid-19.

They'll be given a small bottle of hand sanitizer and two masks each. "They don't talk about vaccines, they don't even talk about us being tested," said German volunteer Barbara Holthus, who is director of Sophia University's German Institute for Japanese Studies, in Tokyo.