in terms of the number of casualties has happened since 2005 when people were killed in multiple attacks, suicide bombing attacks. this is the if irs time thfirstg like in these numbers has happened in london. there's a huge number of surveillance equipment around here, cc-tv. it goes without saying that this is the heart of the british government. this is westminster, the houses of parliament. this is the day that there were prime minister questions, meaning she was in the building. she was bundled out, theresa may, as soon as an attack occurred. three members of parliament were also on lockdown and gradually in the last hour they have been allowed out under police escort. this is the first anniversary of