ms. tothses at the end of its data retention period rather than just deleting a few numbers as is the practice of a number of your competitors. if you do not need the ip addresses for fraud prevention or anything else, what is the utility in keeping the ip address at all? why the fractional numbers, and why don't you just dump it right and wait? >> i think we have slides in there of our data retention policy. the vast majority of our data at 90 days we de-identify the data. we apply a four-step process to removing identifiers. the ip address is one of those identifiers that is stored in the laws, and for us we completely delete that identifier in 90 days with the exception of the fraud and abuse systems which hold it for up to six months and then it is deleted. so we store that data only for as long as we needed for the purposes of providing our services and then we de-identify the records and that gets to the ip address. the ip address is typically in the context of use having to do more with