Obviously Resinates News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Mind before today? was this an every day thought you had, the possibility of something like this happening? >> reporter: i think ever since 9/11 and 7-7, terrorism is in the back of your mind when you go into a major city. funny enough i was covering the duke and duchess's visit which was rocked by another terrorist scare when a man was killed at the airport nearby. of course it's on your mind. and you speak to security professionals, and they're pretty honest. they say often terrorism, it's not a case of if, but when it happens. obviously everyone's on high alert, but like in new york or othe...