"Recent guidance has come from the Administration that needs interpretation relative to supporting travel for all NASA activities. These rules will go into effect on March 19, 2013. We are in the process of executing all elements of the guidance and will notify those that are affected. For instance, we have worked with all the NASA Centers and JPL employees and have completed an approved list of attendees."
Keith's note: Charlie Bolden is curtailing NASA travel to scientific and technical meetings to save a vanishingly small amount of money in the grander scheme of things - yet he still allows this solicitation to be put out: NASA Solicitation: Scale Models of the James Webb Space Telescope. So ... toy telescope models trump participation in science meetings? That's how Charlie Bolden sees it.
NASA Limits Travel; No Layoff Plans - yet (update), earlier post