this is bbc news. the headlines. after the us military shoots down a fourth unidentified flying object over north america — the secretary general of nato urges countries to be vigilant i think what we saw over the united states, obviously last week, is part of a pattern, where china, but also russia, are increasing their intelligence and surveillance activities against nato allies. i wouldn't comment in detail on security matters, but people should be assured that we have all the capabilities to keep the country safe, including the quick reaction alert force, which has typhoon planes, which can police our skies on 24/7 readiness. the former metropolitan police officer wayne couzens — who murdered sarah everard — pleads guilty to three counts