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The US may have to fly military equipment out of Afghanistan since the land route through Pakistan has been blocked because of anti-US protests.

US officials say the possible air shipments would cost an additional one billion dollars. Sending the cargoes out through the normal routes via Pakistan would cost about five billion dollars. Dozens of Pakistani protesters continue to gather on the busy overland route more than a week after Islamabad promised Washington that it would take immediate action to quell the protests. Pakistanis are angry with US drone operations which have left scores of civilians dead and injured in their country.