Complex questions like this generally have very easy answers.
If one knows driving, he would know the answer to this question.
When you are waiting on a red light junction of 4 or more roads, which green lights do you look for before proceeding ?
Is it the one in your front, or on your left side, on you right side or opposite side ?
Of course, the answer is the front one. You do not care if the signal on the left/right or opposite side is turning green or not.
Now, here most of the world is following a religious path which is non mayan. There is no red signal in those religions for Dec 21, 2012, and they do not have to panic or worry.
However, there is a red signal for that date in the Mayan Calendar and people are worried. It is like driving straight but looking at the red signal for a road coming from the left side.
So, if you are not mayan, you do not have to worry.
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