My Astro.com Horoscope

A defiant tone	*
Valid during many months: You identify very strongly with your ideas and opinions at this time, and you are rather inclined to be argumentative. If someone disagrees with you, it seems like a personal affront. You may get into pointless arguments by defending a position that doesn't need to be defended. You put forth your ideas with considerable vigor at this time, which may provoke others. Even your routine communications may take on a defiant tone, especially if you feel that others have had the upper hand at other times. On the other hand, if you have to "sell" an idea of yours to someone in your job or anywhere else, this is a good time to do it. As long as you refrain from giving people the impression that you are attacking them, you will impress them by the power with which you state your ideas.
The interpretation above is for your transit selected for today: Mars in the 3rd House, 3, from 13:42 activity period from 16 October 2011 until end of May 2012