Nigeria, Feb. 10 -- President Donald J. Trump likes teasing out the unmentionable, and the Israel-Palestinian situation was hardly going to be any different. With a touch of horror and the grotesque, he offered a solution to the issue of what would happen to Gaza at the conclusion of hostilities. In a White House press conference with Israeli Prime Minister Benjamin Netanyahu, he declared that the United States "take over and own the Gaza Strip", in the process promising to "create an economic development that will supply an unlimited number of jobs and housing for people of the area."

The strip, one of the most densely populated stretches of territory on the planet, would be reconstructed, redeveloped and turned, effectively, into a bea...