Obama visits Afghanistan Obama received a military briefing at the Bagram air base after his arrival [AFP] Barack Obama, the US Democratic presidential candidate, has begun a visit to Afghanistan, attending a military briefing at Bagram airport before travelling to a base in the east of the country. The visit on Saturday was the Illinois senator's second stop on an international tour aimed at boosting his foreign policy credentials during his campaign to become the US's first black president. At the Bagram base, north of the capital Kabul, military leaders told Obama, and the other senators travelling with him, about efforts...