The 48-hour dash to save Afghanistan's election

KABUL - He was only on the ground for 48 hours, but America's top diplomat John Kerry may well have helped prevent Afghanistan from sliding into another bloody ethnic war. The helicopters were waiting for the US Secretary of State when he arrived in Kabul from Beijing early Friday on a last-minute mission to broker an end to a tense political impasse. Some 48 hours later they flew him back over