Seasonally adjusted deceptions

Every wonder how seasonally adjusted "jobs numbers" from the government vary when contrasted with unmolested stats?

The Wall Street Journal provides a peek:

The U.S. economy lost more than 2.7 million jobs between the middle of December and the middle of January, but the big news from the January jobs report was that the economy added 275,000 jobs during the same period.

The so-called seasonally adjusted numbers, as applied today, seem nothing more than a tool used by government to cheer lead a sluggish economy, a means to keep the people from realize how poorly our economy performs in its current over-regulated and government-adjusted state.