Al-Qaida number two Ayman al-Zawahri has called American soldiers cowards "with no faith in their leaders". In an audio tape broadcast on Aljazeera TV on Friday, al-Zawahri said al-Qaida is pursuing Americans everywhere, but especially "in Afghanistan, in Iraq, in Palestine and in the Arab peninsula". The tape, which has yet to be verified for authenticity, is said to have been made in November during the Muslim fasting month of Ramadan. It marks the second anniversary of the battle of Tora Bora, when US-led forces in Afghanistan sought to wipe out al-Qaida chief Usama bin Laden and other leaders of...