This is why repeated attempts at reform legislation have failed in recent years, leaving the Postal Service unable to pay its bills except by deferring vital modernization.
As climate talks begin to build toward a climax in Copenhagen in December, when a follow-on to the Kyoto Protocol is due to be drawn up, Gao's challenge stands as a gaping rift.
In the nineteenth century, scientists made a number of important, but unsuccessful attempts to calculate Earth's age from the record of various natural processes.
There are ways to express some such restrictions at present in RELAX ng, but they break down when trying to apply such restrictions in cases such as mixed content.