According to this San Diego Union Tribune story, the U.S. Fish and Wildlife Service’s recent request for $141 million to fund the Endangered Species Act next year included a surprising admission: the agency doesn’t know whether the program is effective. Due to a lack of funding, say officials, the USFWS cannot even describe in general terms the status of more than 500 listed species. With the Senate soon to consider a rewrite of the act, this uncertainty is bound to play a role in the process. Whether it leads to more or less radical change, however, is still up in the air.