U.S. Vice President Dick Cheney will undergo an elective surgery next weekend to treat an aneurysm in an artery behind his right knee, The Associated Press reported. The condition, discovered earlier this year during a routine checkup, needs to be treated "as to not become a problem over time," Steve Schmidt, counselor to the vice president, said Friday. "The procedure will be performed under local anesthetic," Schmidt said. "It will take place next weekend. It will involve a short hospital stay. The vice president will return to work shortly thereafter." Schmidt said more details will be announced next week.