MECCA, Saudi Arabia -- Draped in white robes to symbolize purity and the equality of mankind under God, nearly 3 million Muslims from all over the world gathered Friday in Mecca, on the eve of the start of the annual hajj pilgrimage. Male pilgrims, wearing two-piece seamless white robes, and women, covered head to foot except for their hands and faces, circled the sacred Kaaba stone structure seven times inside the Grand Mosque, which Muslims face during their five daily prayers. A pillar of the Muslim faith, the hajj is packed with symbolism and ritual aimed at cleansing the soul...