BARCELONA, April 26 -- Leading medical journal The Lancet will decline a request to provide evidence for a US Senate inquiry into the origins of the Covid-19 pandemic, its editor-in-chief Richard Horton told Reuters in an interview on Friday. "We have received a request to go and give evidence at a Senate inquiry, which we're not going to do," Horton told Reuters at the Reuters Pharma event in Barcelona. Horton said that the journal would not engage "with an administration that has attacked some of the foremost scientists of our age", citing the treatment by President Donald Trump's administration of a former top US health official, Anthony Fauci, who led the country's Covid-19 response. He has faced threats since then as well as the ire of...