scientist in november. and the u.s. and iran have been rattling sabres with implied threats in the persian gulf as well. sunday marks the first anniversary of the death of general suleimani in a drone strike and the potential of an attack from iran is the highest since his death. the u.s. has flown nuclear capable b52 bombers twice in the past month as a show of force. still ahead on cnn, field hospitals are on standby in england as the nation struggles to contain the new variant of the coronavirus. a live report from london. that's next. also, the chinese city of wuhan was ground zero at the beginning of the coronavirus pandemic. now we'll look at how far it has come since, when we return. os. they know exactly which parking lots have the strongest signal. i just don't have the bandwidth for more business. seriously, i don't have the bandwidth. glitchy video calls with regional offices?