That's a lame analogy.
I would hire guards for my kid... if my family was receiving death threats.
AND.. since a Presidents family has historically received said threats in the past AND even been assassinated...
Well... the NRA appears to be really reaching in this "ad".

"If it turns out that President Barack Obama can make a deal with the most intransigent, hard-line, unreasonable, totalitarian mullahs in the world but not with Republicans? Maybe he’s not the problem."