An investigation by the US Secret Service revealed communication gaps and a lack of vigilance in the lead-up to an attempted assassination of US presidential candidate Donald Trump during a July rally in Butler, Pennsylvania, according to Reuters. “There was complacency on the part of “some agents” that led to a breach of security protocols,” Acting Secret Service Director Ronald Rowe told reporters on Friday, adding that agency employees will be held accountable. “These penalties will be administered according to our disciplinary process,” Rowe said, declining to provide further details. He d…