Following last week's introduction of a California State bill that would require all cellular phones sold in the state to include antitheft technology, four senators have today introduced (via Re/code) The Smartphone Theft Prevention Act, a similar federal bill that would mandate the inclusion of such a "kill switch" in all smartphones sold across the country. The bill would require smartphones to be equipped with both a kill switch to make a lost or stolen device inoperable and a system allowing consumers to remotely wipe their personal data."This legislation will help put consumers in control of their cell phone data through a 'kill switch' to immediately disable a stolen phone.