Should the games go on? >> no. i think it's just not feasible. >> reporter: doctors and nurses agree: stop the olympics, say these signs in a tokyo hospital with fears of a new "olympic" variant. >> there is still a possibility the olympics could become a source for virus transmission around the world. >> reporter: but $16 billion is the estimated cost of canceling the games, and the first international athletes from australia's women's softball have already arrived. every olympian has to sign a waiver releasing tokyo from any liability, but if the games do go on, about 15,000 spectators from ...