Top 10 Secret Service Code Names

After winning in the Florida primary, news outlets announced GOP candidate Mitt Romney would begin to receive Secret Service protection. Though we don't yet know what the Romney family's code names will be, TIME takes a look back at some of the better Secret Service monikers throughout history.

Halo

secret service codenames pope john paul II

Derrick Ceyrac-Eric Feferberg / AFP / Getty

The Secret Service also protects foreign dignitaries on their visits to the United States. One needn't think too hard to determine the origins of the papal nickname.

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