Senator asks if nation's drivers should slow down

(Yahoo News) - An influential Republican senator suggested Thursday that Congress might want to consider reimposing a national speed limit to save gasoline and, in turn possibly ease fuel prices.

Sen. John Warner, R-Va., asked Energy Secretary Samuel Bodman to look into what speed limit would provide optimum gasoline efficiency given current technology. He said he wants to know if the administration might support efforts in Congress to require a lower speed limit.