Berlin (AFP) – Germany said Monday it would keep two nuclear plants on standby beyond the end of the year in a policy U-turn, as the shut-off of Russian gas supplies sends Europe scrambling for energy sources.Following a new network stress test, two of the three remaining power plants would "remain available until mid-April 2023 in case needed", Economy Minister Robert Habeck said in a statement.The move partly delays a nuclear exit planned under former chancellor Angela Merkel.The plants would be kept in reserve to potentially "make a further contribution to the electricity grid in southern Germany", where the development...