A day after President Barack Obama acknowledged he was exploring "additional options to promote job creation,” Washington opinion leaders and policy makers on Sunday cautioned against a new stimulus package, urging more targeted steps to ease mounting unemployment.

Former Federal Reserve Chairman Alan Greenspan and Sens. Chuck Schumer (D-N.Y.) , John Cornyn (R-Texas), Barbara Boxer (D-Calif.) and Jon Kyl (R-Ariz.) in appearances on Sunday shows all rejected or brushed aside suggestions of another stimulus, with Greenspan and Cornyn questioning whether Obama’s first stimulus was proving effective...

WASHINGTON – Vice President Joe Biden proclaimed success beyond expectations Thursday for the $787 billion economic stimulus, but his glowing assessment overlooks many of the program's problems, including delays in releasing money, questionable spending priorities and project picks that are under investigation.

In a speech aimed squarely at Republican criticism and public skepticism over the costly program's effectiveness, Biden said accomplishments over the past 100 days provide proof of promises kept when he and President Barack Obama began rolling out the plan earlier this year.

"The Recovery Act is doing more, faster and more efficiently and more effectively than most people expected," he said...