Some 45,000 police and thousands of soldiers have been deployed in a huge security operation in Paris for the opening show, leaving security resources elsewhere stretched.
France has deployed more than 45,000 police, 10,000 soldiers, and 2,000 private security agents, with snipers and drones watching over the whole city.
In the case of the video, a Hamas spokesperson claimed it was a forgery, and researchers at Microsoft who reviewed the video backed up that claim.
Arsonists targeted France's TGV network, causing major disruptions as the Paris Olympics begin. Sports Minister Amelie Oudea-Castera condemns the attacks.
The Jerusalem Post Podcast with Tamar Uriel-Beeri and Sarah Ben-Nun
There will be 88 Israeli competitors at the Paris Games, its second-largest Olympic delegation, two fewer than in Tokyo three years ago.
Australia’s Jessica Fox is already widely regarded as the greatest individual slalom canoe paddler of all time, and has four Olympic medals under her belt.