By Alina Selyukh WASHINGTON (Reuters) – ATT Inc CEO Randall Stephenson said on Wednesday he was anxious to hear details of President Barack Obamas proposals to reform U.S. surveillance programs, hoping for more clarity on the rules guiding the data collection operations. Obama is slated on Friday to unveil proposed reforms of National Security Agency surveillance programs, potentially including its once-secret program to collect metadata of billions of domestic and foreign telephone calls, whose existence was disclosed last year by former NSA contractor Edward Snowden. A presidential review panel recommended that the controversial bulk phone metadata collection program be reformed by having telecommunications companies or private third parties, rather than the NSA, record and store the data.