black, the singer from the selecter, performing in a residential part of the city so there was an element of surprise there for residents waking up surprise there for residents waking up in the area. organisers have had a challenge trying to get this off the ground and keep things low to avoid attracting mass crowds. but look where we are now in the beautiful coventry cathedral ruins. this is just one of the centrepoint of today s opening event. coventry was bombed in the second world war. out of that the city became a symbol of peace and reconciliation. it s a city that is twinned with dresden in germany. but it also has the rich history of car manufacturing and innovation, and of migration. it is also a useful city. these are the stories which will be reflected in p°p up stories which will be reflected in pop up performances moving through the city. let s have a chat with one of the performers, john barnard, who is a spoken word performer. clearly you ve just finished is a spoken wo
of people are confined in a stadium. reporter: places like dodger stadium, easier to protect. vigilance and security increased since boston. more thorough bag checks, more police presence. but in public venues, mass crowds not secure bid stadium walls, security concerns multiplied. boston is reassessing security plans for 35,000 runners and tens of thousands of fans lining the route. it s the same problem in tempe, arizona, at this week end s pat tillman run. extremely challenging, not a secure environment. we can t put fences around, can t put an officer every two feet. we rely on every set of officers. so many radicalized groups, so many individuals out there, so many large events and soft targets, regardless of the event, the best security is knowing of the threat before the events occur.