"The Dornish are well versed in deception, so it has always been hard to receive anything from their deserts. As I said before, my previous spies in Winterfell were killed when the Ironborn sacked it. And both Dorne and the North are inhospitable and suspicious of outsiders, so it is very hard to spy there successfully," he carefully explained himself. Petyr was getting tired of getting questioned like this. The number of ridiculous rumours he had to sift through to find reliable information was too high.