NEW : Obama supports recovery of well , says recovery efforts continue . BP well ` ` ' no continuing threat , '' the government 's point man . `` This spill began with a bang , ends with a whimper , and leaves a number of issues still screaming for attention , '' Rep. Edward J. Markey , D-Massachusetts , said Saturday . BP begins final cementing work to cap Gulf well on site . Environmental and economic recovery lie ahead .
NEW : Obama supports recovery of well , says recovery efforts continue . BP well ` ` ' no continuing threat , '' the government 's point man . BP begins final cementing work to cap Gulf well on site . Environmental and economic recovery lie ahead .