Imagine waking up one morning, going to your mailbox and finding a pamphlet from the government saying it was putting surface-to-air missiles on the roof of your building.

Some residents of London don’t have to imagine that scenario, they got those notices.

British officials say surface-to-air missiles are being installed on some buildings to protect this summer’s Olympic Games in London from potential aerial attack.

Brian Whelan is a London-based journalist and a resident of one of the buildings the government is turning into missile site.