* Supreme Court blocks Biden virus mandate for big firms
* Russia says Ukraine talks at ‘dead end’
* Hack attack brings down government web site in Ukraine
* Omicron persuades economists to cut US growth outlook for Q1
* Veteran Wall St economist–“Dr Doom”–criticizes Fed policy re: inflation
* China trade surplus with US rose for second year in 2021
* Global surge in energy demand may lead to more market volatility, IEA warns
* US producer price inflation up 9.7% last year–highest since 2010
* US jobless claims rose last week to highest level since November: