Has US trade deficit reduced in the past few years? why?

Question

What is trade deficit? and how is the US trade deficit doing? please supply any sources

Answer 1

"Over the first seven months of this year, the trade gap was 414.51 billion dollars, down from 449.84 billion in the same period in 2006. That puts the US on track for the first decline in the trade deficit in six years"
http://uk.news.yahoo.com/afp/20070911/tbs-us-economy-bank-trade-bernanke-8cc5291_1.html

The fall in the dollar should reduce our trade deficit.

For definition see wiki at
http://en.wikipedia.org/wiki/Trade_surplus