PM Johnson to tell business chiefs he will end uncertainty

British Prime Minister Boris Johnson will tell business leaders on Monday that his pledge to take Britain out of the EU swiftly will end uncertaintly and boost the economy, seeking to win over industrialists who have mainly opposed Brexit.Speaking at the annual conference of Britain's main business lobby, the CBI, Johnson will say that while big businesses made clear they were not in favour of Brexit in the 2016 referendum, they were also now clear they wanted certainty.