>What about the ones who're gay or single
They probably get assigned 'beards' in order to tie 'em into MAD (mutually assured destruction/defense) agreements, i.e. husband & wife can't testify against each other…
'beard' definition @urbandictionary :A female or male (though,mainly female) who is used as a cover-up for a homosexual.
Classic beard examples: GWB & Laura, Travolta & Kelly Preston, Tom Cruise & Katie.