“Aeroplanes should always be carriers of peace, never of war,” the American pontiff said.

“No one should fear that threats of death and destruction will come from the sky.

“After the tragic experiences of the 20th century, aerial bombardments should have been banned forever.

“Instead, as we know, they still exist, and technological development—which is positive in itself—is being put at the service of war.

“This is not progress; it is regression.

“In this situation, it is even more important to chart routes of peace in the skies.”

ANSA