The performer who raised a dual Sudanese-Palestinian flag during Kendrick Lamar's Super Bowl halftime show says he has no regrets about the stunt, which exposed a massive security failure for a major event attended by the US president. Zül-Qarnain Nantambu confirmed that he unfurled the banner, emblazoned with the words 'Sudan' and 'Gaza,' in New Orleans on Sunday evening as a message of solidarity to the victims of those conflicts. Nantambu stood on a car used as a prop for Lamar's show and held up the flag, before running around the field and then being wrestled by security staff and...