The Prime Minister said he was “fully reconciled” to a probable tightening of the anti-Covid measures. Mr Johnson said the tiering system was already “very tough” and would likely need tightening. The Prime Minister told BBC1’s Andrew Marr Show: “It may be that we need to do things in the next few weeks that will be tougher in many parts of the country. “I’m fully, fully reconciled to that. Boris Johnson says there could be tougher measures to tackle the new variant Covid-19 strain “There are obviously a range of tougher measures that that we would have to consider.