In 2007, Miami's top federal prosecutor, Alexander Acosta, had a breakfast appointment with a former colleague, Washington, D.C., attorney Jay Lefkowitz. For Lefkowitz ... the meeting was critical. His client, Palm Beach multimillionaire Jeffrey Epstein, 54, was accused of assembling a large, cult-like network of underage girls - with the help of young female recruiters - to coerce into having sex acts ... as often as three times a day. [Epstein] was also suspected of trafficking minor girls, often from overseas, for sex parties at his other homes in Manhattan, New Mexico and the Caribbean, FBI and court records show. But on the morning of the breakfast meeting, a deal was struck - an extraordinary plea agreement that would conceal the full extent of Epstein's crimes and the number of people involved. The deal ... shut down an ongoing FBI probe into whether there were more victims and other powerful people who took part in Epstein's sex crimes. Epstein and four of his [named] accomplices ... received immunity from all federal criminal charges. The deal included wording that granted immunity to "any potential co-conspirators" who were also involved in Epstein's crimes. These accomplices or participants were not identified in the agreement. Now President Trump's secretary of labor, Acosta, 49, oversees a massive federal agency that provides oversight of the country's labor laws, including human trafficking. Court records reveal details of the ... role that Acosta would play in arranging the deal, which scuttled the federal probe into a possible international sex trafficking operation.