Dick Cheney, U.S. vice president returned to work

Vice President Dick Cheney walked with a cane Wednesday as he returned to work at the White House after weekend surgery to repair aneurysms behind both knees.

Cheney appeared to move gingerly in the Rose Garden when he appeared with President George W. Bush and military leaders. Bush glanced behind him to see the vice president's progress down several steps.

Cheney was discharged from the hospital on Sunday and worked from home on Monday and Tuesday, McBride said.

Cheney had flexible stent grafts put in his arteries behind his knees during a six hour operation on Saturday, the AP reports.

The 64-year-old vice president has a lengthy history of heart problems. He has had four heart attacks _ the first when he was only 37 _ quadruple bypass surgery, two artery-clearing angioplasties and an operation to implant a special pacemaker in his chest. AM