In this file photo, balloons of the art installation “Lichtgrenze 2014” (“light border 2014”) fly away at the East Side Gallery, a remnant of the Berlin Wall, in Berlin Sunday, Nov. 9, 2014. It was on Nov. 9, 1989 the East-German government lifted travel restrictions and thousands of East Berliners had pushed their way past perplexed border guards to celebrate freedom with their brethren in the West.
In this file photo, balloons of the art installation “Lichtgrenze 2014” (“light border 2014”) fly away at the East Side Gallery, a remnant of the Berlin Wall, in Berlin Sunday, Nov. 9, 2014. It was on Nov. 9, 1989 the East-German government lifted travel restrictions and thousands of East Berliners had pushed their way past perplexed border guards to celebrate freedom with their brethren in the West. Lukas Schulze Associated Press file
In this file photo, balloons of the art installation “Lichtgrenze 2014” (“light border 2014”) fly away at the East Side Gallery, a remnant of the Berlin Wall, in Berlin Sunday, Nov. 9, 2014. It was on Nov. 9, 1989 the East-German government lifted travel restrictions and thousands of East Berliners had pushed their way past perplexed border guards to celebrate freedom with their brethren in the West. Lukas Schulze Associated Press file

On Ethics: What kind of message would an American border wall send to the world?

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