Tensions rise as U.S. revokes Colombian President Petro's visa over anti-Trump comments at U.N. protest.

The Colombian leader was filmed joining thousands of pro-Palestinian protesters outside UN headquarters in New York.

Washington/New York City (dpa) - Das US-Außenministerium wirft Kolumbiens Präsidenten Gustavo Petro vor, US-Soldaten aufgewiegelt zu haben, und will dessen Visum widerrufen. Petro…