Nigeria, Dec. 2 -- Since the end of October, two chartered flights carrying Palestinians have landed at South Africa's OR Tambo International Airport. Many of the passengers did not have appropriate travel documents, exit stamps or any discernible travel plans. Some didn't even know where they were when the plane landed.

Passengers from the first flight were allowed to quietly enter South Africa under an existing 90-day visa exemption. Those on the second flight - including women (one pregnant) and children - were held for more than 10 hours on the tarmac while the border authorities awaited a decision to allow them to disembark or to turn the plane around.

South Africa is investigating the incidents, including if and how Israel was inv...