Hillary Rodham Clinton took another sharp jab at the Bush administration as she outlined her science policy Thursday.

The front-runner in the 2008 Democratic presidential campaign unveiled her agenda for the scientific community at the Carnegie Institution for Science in Washington, D.C.

Under her administration, she said, the federal government would return to funding "ethical embryonic stem-cell research," ban political appointees' interference with government scientists' conclusions, elevate a science advisor to report directly to the president, and boost research into space exploration, the earth sciences and alternative energy.

Bill Clinton, the former US President, hopes to become a roving ambassador to restore the international reputation of the United States if his wife, Hillary, wins next year’s presidential election.

Speaking on BBC Radio 4's Today programme, Mr Clinton said that he would accept any job offered to him by his wife.

But he added: “Probably I would be of most use to her doing something to try to help restore America’s standing in the world and build up allies and get us to work together again."

He said that despite his experience as President, his wife, if elected, would be firmly in charge.