(AP) - Ten women are led out of Action Rags USA into a Homeland Security van as Federal immigration agents raided and inspected Action Rags USA, a second-hand clothing warehouse on Port Houston Street, on Wednesday, June 25, 2008, in Houston. The agents have detained...

(AP) - Senate Homeland Security and Governmental Affairs Committee Chairman Sen. Joe Lieberman, I-Conn., left, greets William Quinn of the Committee on Investment of Employee Benefit Assets, right, on Capitol Hill in Washington, Tuesday, June 2, 2008, as Michael W. Masters of Masters Capital Management, center,...

(AP) - William F. Quinn, chairman of the Committee on Investment of Employee Benefit Assets, testifies on Capitol Hill in Washington, Tuesday, June 24,2008, before a Senate Homeland Security and Governmental Affairs Committee hearing regarding oil speculation. (AP Photo/Charles Dharapak)

(AP) - Commodity Futures Trading Commission (CFTC) Acting Commissioner Walter Lukken testifies on Capitol Hill in Washington, Tuesday, June 24, 2008, before a Senate Homeland Security and Governmental Affairs Committee regarding oil and commodities speculation in Washington. (AP Photo/Charles Dharapak)

(AP) - Commodity Futures Trading Commission (CFTC) Acting Commissioner Walter Lukken, left, listens as Michael W. Masters of Masters Capital Management testifies on Capitol Hill in Washington, Tuesday, June 24, 2008, before a Senate Homeland Security and Governmental Affairs Committee regarding oil speculation. (AP Photo/Charles Dharapak)

(AP) - Michael W. Masters of Masters Capital Management testifies at the Senate Homeland Security and Governmental Affairs Committee regarding oil speculation in Washington, Tuesday, June 24, 2008. (AP Photo/Charles Dharapak)

(AP) - Commodity Futures Trading Commission (CTFC) Acting Commissioner Walter Lukken is pictured during a break while testifying on Capitol Hill in Washington, Tuesday, June 24, 2008, before a Senate Homeland Security and Governmental Affairs Committee hearing regarding oil speculation. (AP Photo/Charles Dharapak)

(AP) - Michael Greenberger, director of the Center for Health and Homeland Security at the University of Maryland, testifies to the House Subcommittee on Oversight and Investigations on Capitol Hill in Washington, Monday, June 23, 2008, on energy speculation and the high cost of crude oil. (AP Photo/Lawrence Jackson)

(AP) - James Newsome, CEO and president of the New York Mercantile Exchange, from left to right, Sir Robert Reid, chairman of ICE Futures Europe Intercontinental Exchange and Michael Greenberger, director of the Center for Health and Homeland...

(Reuters) - President George W. Bush (L) kisses Iowa City Mayor Regenia Bailey during a tour of the flood damage in Iowa City, Iowa, June 19, 2008. At right is Secretary of Homeland Security Michael Chertoff . (Jim Young/Reuters)

(AP) - In this Monday, Feb. 16, 2004 file photo, a security patrol jeep...

(AP) - Plum Island, off the northern shore of Long Island, N.Y., is seen in this undated aerial file photo. According to a report released Friday, June 20, 2008, by the...

(AP) - In this Aug. 7, 2007, file...

(AP) - President Bush gestures during a statement to media during a tour of the Midwest flood damage on Thursday, June 19, 2008 in Iowa City, Iowa. From left is Bush, Sen. Tom Harkin, D-Iowa., Iowa City mayor Regenia Bailey, Secretary of Homeland Security Michael Chertoff, Mari Culver, and Iowa Gov. Chet Culver. (AP Photo/Evan Vucci)

(AP) - President Bush, left, hugs Iowa City Mayor Regenia Bailey during a tour of Midwest flood damage, Thursday, June 19, 2008, in Iowa City, Iowa. Homeland Security Secretary Michael Chertoff is at right. (AP Photo/Evan Vucci)

(AP) - Homeland Security Secretary Michael Chertoff, right, shakes hands with Bulgarian Minister of Foreign Affairs, Ivailo Kaflin, left, as Bulgarian Prime Minister Sergei Stanishev looks on at center, as they participate in an interim declaration signing ceremony for the Visa Waiver Program, Tuesday, June 17, 2008, in Washington. (AP Photo/Lawrence Jackson)

(AP) - Homeland Security Secretary Michael Chertoff, right, and Bulgarian Prime Minister Sergei Stanishev listens to questions from the media about the Visa Waiver Program between the two countries, Tuesday, June 17, 2008, in Washington. (AP Photo/Lawrence Jackson)

(AP) - Homeland Security Secretary Michael Chertoff, right, and Bulgarian Minister of Foreign Affairs Ivailo Kaflin participate in an interim declaration signing ceremony for the Visa Waiver Program, Tuesday, June 17, 2008, in Washington. (AP Photo/Lawrence Jackson)

(Reuters) - U.S. President George W. Bush (C) takes part in a briefing on Midwest flooding in the Roosevelt Room at the White House in Washington, June 17, 2008. Bush is joined by FEMA Director David Paulison (L), Vice President Dick Cheney (2nd L) and Secretary of Homeland Security Michael Chertoff. REUTERS/Jim Young...

(Reuters) - U.S. President George W. Bush takes part in a briefing on Midwest flooding with Vice President Dick Cheney (L) and Secretary of Homeland Security Michael Chertoff, in the Roosevelt Room at the White House in Washington, June 17, 2008. REUTERS/Jim Young (UNITED STATES)