http://www.sky.com/skynews/article/0,,30000-1189920,00.html
"'SUICIDE BOMBER' SHOT"
ARTICLE SNIPPET: "Police have shot a suspected suicide bomber at a tube station in south London.
Marksmen opened fire near Stockwell Tube station as passengers were evacuated. It is thought the man was killed."
ARTICLE SNIPPET #2: "Police have been given orders to shoot to kill if they believe someone is about to detonate a bomb.
Brunt said: "The officer or officers involved in this clearly felt this suspect was about to detonate a bomb."
Tube services on the Victoria and Northern Lines were suspended at the request of police.."
I call that "a good start..."