Former Secret Service officer Dan Bongino ripped into his former agency Sunday for its failure to protect former President Donald Trump the previous day. Bongino called Saturday’s bloody assassination attempt “an apocalyptic security failure” and called for the resignation of Secret Service Director Kim Cheatle. Trump was only slightly wounded in the shooting when a bullet grazed his ear, coming within an inch or two of striking him in the head. But one audience member sitting behind Trump was killed by a bullet intended for the former president, and several others were wounded, two critically…