Osborne tightens screws on government spending plans

By William James and David Milliken LONDON (Reuters) - Chancellor George Osborne launched a new front in his austerity push on Tuesday as he challenged some government departments to find spending cuts of up to 40 percent by the end of the decade. Osborne said he would announce on Nov. 25 how he would find an extra 20 billion pounds of annual departmental savings, on top of deep cuts to welfare spending that he unveiled earlier this month in a post-election budget. "This spending review is