U.S. authorities say the men were part of a secret mission to help militants locked in the bloody civil war in their homeland by buying and smuggling hundreds of thousands of dollars worth of surface-to-air missiles. According to court papers, the men also wanted guns — but not just any guns.

"We need AK-47s, but only if you have Russian-made or American-made," prosecutors allege one defendant said during a meeting with an undercover agent posing as a crooked arms dealer. "Not the Chinese."

The videotaped sting is central to an unusual case against four alleged agents of the Liberation Tigers of Tamil Eelam, or "Tamil Tigers" — a Sri Lankan rebel force the State Department calls a terrorist organization.

In July, the U.S. Appeals Court for the District of Columbia Circuit threw out the Clean Air Interstate Rule, which required 28 mostly Eastern states to reduce smog-forming and soot-producing emissions that can travel long distances in the wind.

The court said the EPA overstepped its authority by instituting the rule, citing "more than several fatal flaws" in the regulation. However, a three-judge panel decided to reinstate the rule while the EPA develops a new clean air program.

Judge Judith W. Rogers said allowing the country to go without the protection of CAIR while the EPA fixes it "would sacrifice clear benefits to public health and the environment."

The judges did not give EPA a deadline to come up with new regulations, but warned the agency that this decision is not an "indefinite stay" of its July ruling.

The Environmental Protection Agency had predicted that the Clean Air Interstate Rule would prevent about 17,000 premature deaths a year by dramatically reducing sulfur dioxide and nitrogen oxide emissions. In addition, the EPA said the rule would save up to $100 billion in health benefits, eliminate millions of lost work and school days and prevent tens of thousands of nonfatal heart attacks.

The court also fined the newspaper 25,000 Singapore dollars ($16,400).

Justice Tay Yong Kwang ruled Tuesday against the newspaper and two of its editors, three weeks after Attorney General Walter Woon argued the editorials published in June and July questioned the judiciary's independence from Prime Minister Lee Hsien Loong and the ruling People's Action Party. Not meting out punishment in this case would undermine the country's rule of law, the court said.

The letter to the editor was written by Chee Soon Juan, head of the opposition Singapore Democratic Party.

The editorials and the letter "contained insinuations of bias, lack of impartiality and lack of independence and implied that the judiciary is subservient to Mr. Lee and/or the PAP and is a tool for silencing political dissent," Tay wrote in the ruling.

"There can be no doubt that allegations of the nature mentioned above would immediately cast doubts on the judiciary in Singapore and undermine public confidence."

The newspaper's lawyer, Philip Jeyaretnam, was not immediately available for comment. The Wall Street Journal is published by Dow Jones & Co., a part of News Corp.

Singapore's leaders have sued journalists and political opponents several times in past years for alleged defamation. They have won lawsuits and damages against Bloomberg, the Economist and the International Herald Tribune.

Human Rights Watch called on Singapore last month to stop using defamation lawsuits to stifle criticism and bankrupt opposition politicians, citing the High Court's decision in October to order Chee and his party to pay $416,000 to Lee and his father, Lee Kuan Yew, in damages stemming from a 2006 defamation case.

Government leaders justify suing political opponents, saying it is necessary to defend their personal and professional reputations since it bears on their ability to govern properly and command respect from Singaporeans.