Neville Longbottom- The Other Chosen One 

Dumbledore showed Harry the complete Nawawala Prophecy. We learn that Neville could also have been the Chosen One. Dumbledore tells us this, and then insists it could only have been Harry. Why mention it then, in the first place?
keywords: harry potter, neville, longbottom, deathly, hallows, book seven, rumors