Do You Call?

[dachord]

A hypothetical scenario: It's the first day and the first hand of this year's WSOP. You're on the button. Two players immediately go all-in (UTG & UTG+1). It is folded around to you. You look down at your hole cards and you're surprised to see pocket aces. You look at the other players in an effort to get a read, but they have their best poker faces on. SO, do you call or fold? What is your rationale behind your decision?