Burger King posted an offer on their Facebook page --
Claim it and you'll receive the coupon via email.
Expires November 4, 2012
Offer Includes: Free WHOPPER® with the purchase of a WHOPPER®. Not valid on specialty v
ersions. Limit one per customer. Not to be used with any other coupon or offer. Void where prohibited. Sales tax applicable. Cash value 1/100. This offer may not be available in all BURGER KING® restaurants and participation may vary by restaurant. Offer Valid in US only, excluding Alaska and Hawaii. (TM) & (C) 2012 Burger King Corporation. All Rights Reserved.