Last Friday, Mr Kerry was asked his response to the news of the beheading of Paul Johnson, the American engineer, in Saudi Arabia. It was clearly one of those "political" moments -- a time for a blast of high-octane rhetoric, a whiff of anger at the killers and an oozing of "shared pain" for the family. As it was, Mr Kerry glanced up from what looked like scribbling autographs for supporters, muttered something about the murder underlining the problems of the troubled region, and then lowered his head again. Kerry faces summer challenge | 
