For when the U.S. Postal Service just won't do: K-Fed hired a former Israeli commando to track down and deliver subpoenas to Britney's assistants in the ongoing custody battle over their two toddler sons. Security expert Aaron Cohen found assistant Alli Sims and producer Jonathan Rotem at a Hollywood Hills party. "If Alli were a terrorist, she would have been taken down," a source tells the New York Daily News.
Cohen infiltrated the party at 2:30 AM, and handed subpoena papers to Britney's henchmen. Spears herself was also at the party, and was apparently not amused by the covert operations. Federline wants the pair questioned under oath about Britney's rotten parenting skills. Meanwhile, Spears continues to party.