Peter Emmel just notified me that the White House has put forth a request for information (RFI) for new "Grand Challenges" for the 21st Century. In essence they are soliciting ideas for a new "Moon Shot." There are no formal formatting instructions, and anyone can participate. It is essentially a public opinion poll on how research dollars will be spent... So speak up! The main PR site is here, but more detailed information is available from the original press release.
Got a great idea of what the U.S. should be spending its research funding on? Send it to the White House!