Sample URL (realtime coverage): http://news.google.com/news/rtc?pz=1&cf=all&ncl=dR01miRCSxKz1eMZO-MiyyqYSalaM&topic=m
Full coverage URL of the same topic: http://news.google.com/news/story?pz=1&cf=all&ned=us&hl=en&topic=m&ncl=dR01miRCSxKz1eMZO-MiyyqYSalaM
How long do these realtime or full coverage pages last? Will the links to them or the pages expire after a certain amount of time has passed?