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On Tuesday morning, space shuttle Discovery will become the first of NASA's three shuttles — plus a shuttle prototype — to travel to its new retirement home.

NASA flew its last shuttle flight in July. Since then, it's been prepping the spaceships to become museum displays. And even though the shuttles are headed to places like Los Angeles and New York rather than the space station, figuring out how to get them there has still been a major undertaking.

Scientists who created mutant forms of bird flu want to see their research published, and an influential advisory committee recently gave them the green light after a debate that lasted for months.

But one of the manuscripts is now being blocked from publication because of Dutch legal controls on the export of technology that could potentially be used for weapons.

It's just the latest example of how complicated international export control laws have affected the debate over what to do about two studies on bird flu.

Federal agents interviewed new witnesses this week in an ongoing investigation of government scientists that's been called "polar bear-gate," according to the scientists' lawyer.

The controversial probe, now entering its third year, is looking into allegations of scientific misconduct related to a 2006 report by wildlife researchers Charles Monnett and Jeffrey Gleason, who described seeing dead polar bears floating in Arctic waters.

A nonprofit foundation set up to support scientific research of interest to the Food and Drug Administration is finally starting to take off after years of struggling financially — and it's about to get some long-promised funding from the FDA.

But some critics worry that this foundation, which will also raise money from private sources including industry, could provide a way for the food and medical industries to sway FDA decisions.

A government advisory committee has reconsidered its advice to keep certain details of bird flu experiments secret.

Revised versions of manuscripts that describe two recent studies can be openly published, the committee now says. The decision could help end a contentious debate that has raged within the scientific community for months.

In response, the editors of two journals immediately said they planned to publish the research soon.