At the end of the 4th book, Voldemort is revived by taking Harry Potter's blood, which means the protection Harry had in his blood against Voldemort is now useless because Voldemort could touch Harry without hurting himself.
But in the 5th book, Dumbledore explained to Harry that he has been sending him to live with the Dursley's for the last 15 years because he has been protected by their blood.
Well now that Voldemort has Harry's blood, what's the point of continuing to send Harry to the Dursleys? And why didn't Dumbledore address this?
Anyone know the answer? I've been trying to think about it, but I still don't get it....