With No Front-runner in Sight, Outcome of Papal Conclave Is Anybody's Guess

As 115 cardinals prepare to lock themselves into the Sistine Chapel until the longed-for white smoke signals the election of a new pope, speculation over the leading candidates mounts.

VATICAN CITY - One hundred and fifteen cardinals will proceed Tuesday into the Sistine Chapel and take a vow not to reveal any detail from the conclave....