I am writing to urge you to contact Sen. Ron Wyden (D-OR) or Rep. Jason Chaffetz (R-UT) to sign on as a co-sponsor and to pledge your support for the Geolocation Privacy and Surveillance Act, H.R. 2168 and S.1212, bills that would protect sensitive location information data by requiring law enforcement to get a warrant based on probable cause before accessing it and also regulate the use of this information by business. With location tracking cases rising up all over the country this bill would provide a strong and clear national standard for law enforcement. The recent discovery that Apple iPhones had been secretly logging their users' whereabouts is but one symptom of a widespread threat to privacy. Whether it is a visit to a psychiatrist, a liquor shop, a place of worship or a rifle range, individuals' locations are tracked and available both in real time and months or even years later. Because of the sensitivity and invasiveness of these records, law enforcement agents wishing to obtain them always should be required to obtain a warrant and to show probable cause, no matter the technology employed or the age of the records. Unfortunately, the government frequently obtains location tracking details without first obtaining a warrant and establishing probable cause. Law enforcement has obtained location information since at least the late 1990's but more than a decade later there still is no uniform standard for when law enforcement can access these data. Whilst the Department of Justice has issued recommendations setting out when prosecutors should show probable cause, United States Attorneys' offices are apparently free to ignore these recommendations, and some have chosen to do so. Worse, the government seems to have engaged in a coordinated effort to prevent the creation of a uniform standard by refusing to seek appellate court decisions on the issue. This legal manoeuvring has prevented public debate and permitted the entrenchment of a practice inconsistent with Constitutional principles. Congress is the only branch of government that is well-positioned to ensure that privacy is respected in the face of new mobile tracking technologies. The Executive has proven itself unwilling to show probable cause voluntarily. The courts are not well-equipped to do so because the government chooses not to appeal decisions, frustrating development of the law. I'll look forward to hearing your response on this critical issue.