Analysts seem divided on whether this is the start of a more flexible currency regime for China or an old-style devaluation. It appears to be a bit of both. China's economy has been struggling and a weaker currency would give it a boost, although most commentators say a steeper fall would be needed for a real impact.
The length of time depends on the severity of the offense. Most points (illegal turn, not making a complete stop, driving over the speed limit, etc.) and/or accidents will stay on your driver record for 39 months (3 years, 3 months). Points for more serious offenses, such as hit-and-run or a DUI, will stay on your record for 13 years.
Tickets normally can stay on a Virginia driving record from three years to 11 years, however if you are convicted of a serious violation it will remain on your MVR permanently. So the length of time that a conviction stays on your VA driving record depends on the severity of the violation.