At a book signing at an Iowa Walmart last Thursday, CNN reporter Jim Acosta received a frosty response when he questioned Fox News contributor and possible presidential contender Sarah Palin about her presidential ambitions, as the blog Media Bistro notes.

Reporting on the incident, Acosta pointed out that Palin's position with Fox means that she is “not doing interviews with media outlets outside of Fox News for the most part.”

In other words, Palin's position with Fox should help her to avoid the kind of questioning she faced from Acosta in Iowa.