suraj.sun notes CNet reporting on bills filed in the US House
that would require all ISPs and operators of Wi-Fi hotspots — including home users — to maintain access logs for 2 years
to aid in law enforcement. The bills were filed by Republicans, but the article notes that the idea of forcing data retention has been popular on both sides of the aisle over the years. "Republican politicians on Thursday called for a sweeping new federal law that... would impose unprecedented data retention requirements on a broad swath of Internet access providers and is certain to draw fire from businesses and privacy advocates. ... Each [bill] contains the same language: 'A provider of an electronic communication service or remote computing service shall retain for a period of at least two years all records or other information pertaining to the identity of a user of a temporarily assigned network address the service assigns to that user [i.e., DHCP].'"