Kidnappers in Iraq Free Seven Truckers BAGHDAD, Iraq - Militants in Iraq freed seven foreign truck drivers Wednesday after holding them six weeks, while Muslims united behind calls for the release of two French reporters captured by a separate group demanding that France revoke a ban on Muslim head scarves in schools.    Also Wednesday, gunmen shot at a convoy carrying former Iraqi Governing Council member Ahmad Chalabi as he returned from Najaf to attend the first meeting of Iraq's 100-member National Council, which is to act as a watchdog over the interim government and help shepherd the nation to elections...