The officials say tougher legislation is needed because some telecommunications companies in recent years have begun new services and made system upgrades that create technical obstacles to surveillance. They want to increase legal incentives and penalties aimed at pushing carriers like Verizon, AT&T, and Comcast to ensure that any network changes will not disrupt their ability to conduct wiretaps.
An Obama administration task force that includes officials from the Justice and Commerce Departments, the F.B.I. and other agencies recently began working on draft legislation to strengthen and expand a 1994 law requiring carriers to make sure their systems can be wiretapped. There is not yet agreement over the details, according to officials familiar with the deliberations, but they said the administration intends to submit a package to Congress next year.