tackling britain's "pingdemic" — hundreds more covid testing sites are to be set up across england to ensure essential workers can avoid self—isolation and keep working. president biden warns that the us is facing a "pandemic of the unvaccinated", as the delta variant of coronavirus spreads. now on bbc news, the travel show�*s in tokyo, host city of the olympic and paralympic games, to find out how its hotels are dealing with the influx of athletes and trainers from all over the world. this week on the travel show: outrunning covid at the olympic games. the big names rocking central park this summer. siberia's mystery blast craters. you have an exploding crater on land. that is not something i imagined. and the fears for the