WASHINGTON (AFP) - More than 122 million Americans, or 60.7 percent of registered voters, cast ballots in the November 2 presidential election, which saw US President George W. Bush win a second four-year term, a new study showed. The showing marked the highest turnout for a US presidential election since 1968. According to the Committee for the Study of the American Electorate, Bush secured some 62 million votes, or 50.8 percent of the ballots -- an increase of 11.5 million over his showing in 2000. His challenger, Democrat John Kerry, garnered more than 59 million votes (48.3 percent), or eight...