Article on sophos.com
"How a single spam from China ended up as an attack on the White House"
"Fox dedicated over 660 words to the Chinese hacking story, but after careful reading it seems pretty clear that the incident, and the story, can be simplified quite significantly.
Here it is in 40 words, for a compression ratio of over 94%:
* A malicious spam from a computer in China reached a single unclassified computer in the White House Communications Agency.
* The computer may or may not have become infected as a result.
* Protection against malware and hackers is a good idea. "