U.S. congressional leaders who attended a meeting with Federal Reserve Chairman Alan Greenspan, former Treasury Secretary Robert Rubin and top White House economic adviser Lawrence Lindsey on Wednesday said Greenspan expressed concern about the American economy. 

However, Greenspan told lawmakers more time is needed to assess where the economy is headed, lawmakers told reporters. 

"The chairman felt we needed to get a better assessment of the overall impact (of the attack on New York and Washington),'' House Majority Leader Richard Armey said after the meeting on Capitol Hill. 

He added that everyone in the room agreed that the foundation of the U.S. economy was still "solid''. 

House Minority leader Richard Gephardt said of the gathering: "It was mainly a discussion about the state of the economy and how it's been affected by the events.''