One worker committed suicide recently and said he was overworked after doing 200 hours of overtime in a month. There is a shortage of construction workers in Japan after the tsunami.

And you can thank NBC for this fact as in 1964 heat wasn't an issue as they were held in October.
*MB: Press Report: 2020 Olympics will be the hottest in history -

This is something I haven't seen reported anywhere else. People don't really think of Tokyo and heat but apparently it's really hot there in the middle of the summer. Heat wasn't an issue in 1964 in Tokyo as the Olympics were held in October - not July and August like they will be in 2020.

"The 2020 Summer Olympics will take place in the midst of Tokyo’s hot and humid summer period, possibly exposing athletes and visitors to the most challenging environmental conditions ever observed in the modern history of the Olympic Games. By illustrating observational data, this SPORTIFY CITIES report unambiguously demonstrates that, with maximum perceived or feels like temperatures regularly exceeding 45°C, the sheer scale and scope of the heat factor could greatly weaken an athlete’s performance and increase the risk of heat stroke. "

https://sportifycities.com/tokyo-2020-heat-factor/

Hopefully it goes smoother than selecting the stadium and logo did.

Bolt says the only thing he didn't get to accomplish was breaking 19-seconds in the 200m. He also talks about his immense shoe collection which was at 220 at one point, but he's cut it back to about 100.

After becoming the oldest ever medalist in the Olympic 1500, he'll likely focus on the 5000 in 2020 when he'll be 37.

Baseball and softball, karate, skateboarding, sport climbing and surfing will all be on the 2020 Olympic program. *NY Times article

If you think Olympic golf is a joke, consider the MLB would actually have to "stop their activity" during the Olympics to have the pros compete in Tokyo.

No mention of XC unfortunately.

The Tokyo 2020 bid committee has admitted to paying $2 million to the Singapore-based account owned by company Black Tidings and connected to Papa Massata Diack.

Tsunekazu Takeda claimed that details of their contract with Black Tidings are "confidential".

Multiple transactions were made from the Tokyo 2020 organisers to Diack's secret bank account in Singapore known as "Black Tidings". *2nd article
*BBC: IOC Refuses To Comment On Tokyo Payment Claim

Some have complained that the mono-chromatic design needed more color.