 We've got all of these critical systems. We've got, obviously, hospitals, airlines, banks. I've heard that there's emergency services involved. I'm Charles Philodesma, London. You'll find more of these stories at townhome.com. Summer is upon us, and the weather is beautiful. Everyone has a favorite outdoor activity. Golf, bike riding, bird watching, long walks. Ask 100 people, and you'll get 100.