switzerland now face the prospect of quarantining the ten days on arrival. and from tomorrow, you will have to be fully vaccinated to go to spain. no one knows for certain the risks of this new variant but many countries are taking no chances. charlotte gallagher, bbc news. and the prime minister borisjohnson will be leading a downing street briefing at 4pm today. you can follow that live here. of course we are expecting that the premise will give more details about the rooster programme, the covid i9 booster programme, much more to come on that. and perhaps more besides. it will be interesting to listen to as chris mason was suggesting. so do stay with us with that it will start at four pmp and bbc news. the chief of mi6, britain s secret intelligence service, is warning that britain s spies need to work with global tech companies, to combat rising cyber threats.