"We have answered every question, provided every requested piece of information and worked with you in good faith," he said in prepared testimony before the House Foreign Affairs Committee.

Lawmakers have accused the company of holding back information in its role regarding the arrest of Chinese journalist Shi Tao. The Chinese government accused Shi of leaking state secrets and sentenced him to 10 years in prison.

Yang, who became CEO this summer of the company he co-founded, also said Yahoo is committed to doing the right thing and protecting human rights globally.

"We are a company founded on openness, the exchange of information and user trust, and we believe deeply in free expression and privacy," he said.

Michael Callahan, the Internet company's general counsel, is expected to repeat a public apology he made last week regarding his failure to turn over new information to Congress in October 2006, months after he initially testified to two House subcommittees about Yahoo's role in the case.

The foreign affairs committee's chairman, California Democrat Tom Lantos, doesn't buy Yahoo's explanation of why it previously provided incomplete information to Congress.

"Yahoo claims that this is just one big misunderstanding. Let me be clear — this was no misunderstanding," Lantos said in a statement prepared for the hearing.

"This was inexcusably negligent behavior at best, and deliberately deceptive behavior at worst," Lantos said.

Pitt sued the federal government on behalf of its former employees in 2004, arguing early retirement payments between 1996 and 2001 were not taxable wages because faculty members surrendered tenure as a condition of receiving the money.

A federal district court judge agreed, in part. But the 3rd U.S. Circuit Court of Appeals overruled that decision.

The 2-1 court majority says the faculty received the money for past service - making it wages. Pitt says it's not clear whether it will appeal.

Dubay, a 25-year-old from Saginaw Township, had said his ex-girlfriend, Lauren Wells, knew he didn't want to have a child and she assured him repeatedly she couldn't get pregnant because of a medical condition.

He argued that if a pregnant woman can choose among abortion, adoption or raising a child, a man involved in an unintended pregnancy should have the choice of declining the financial responsibilities of fatherhood.

But Lawson disagreed and rejected Dubay's argument that Michigan's paternity law violates the U.S. Constitution's equal protection clause.

The National Center for Men in Old Bethpage, N.Y. -- which prepared the suit -- nicknamed it "Roe v. Wade for Men" because it involves the issue of male reproductive rights. The nickname drew objections from women's rights organizations.

Dubay sued the Saginaw County prosecutor and Wells in March, contesting an order to pay $500 a month in child support for a girl born to Wells in 2005. Michigan Attorney General Mike Cox later intervened in the case and argued for its dismissal.
Dubay previously had acknowledged the suit was a long shot.

"As part of this process, we have met with and continue to cooperate with the DOJ. There has been no determination made at this stage that any anticompetitive behavior occurred," Rose said. "We are doing our utmost to conduct 'business as usual.' It is our intention not to disrupt our employees' routine or their ability to meet the needs of our customers."

Last month, Expeditors International said it received a subpoena from the Justice Department to hand over information and documents related to the investigation. It did not comment further at the time.

Bear Stearns analyst Edward Wolfe said then that the department's antitrust division is working with the European Union and other foreign officials to investigate "possible anticompetitive practices in the international freight industry."

In the Department of Revenue of Kentucky vs. Davis, the court must decide if Kentucky can give tax breaks on interest from municipal bonds sold within its borders, while taxing interest earned on bonds sold in other states.

Justice David Souter disagreed with a characterization by Eric Brunstad, a lawyer for George and Catherine Davis -- Kentucky residents who hold out-of-state bonds -- that municipal bonds, like other securities, were traded like commodities.

"Yes, but it's not taxing an out-of-state commodity in the sense of a commodity which is manufactured or produced out-of-state," Souter said.

Still, Justice Anthony Kennedy said the tax breaks go against the commerce clause of the U.S. Constitution.

"All states want to protect their residents and make it look like they're doing something for their residents. And that's exactly the purpose of commerce clause prohibition against explicit discrimination, which is what this is," he said.

The justices also plumbed the strength of the municipal bond market. Justice Souter noted it was "enormous" and the Supreme Court did not know what would happen if it were interrupted.