Quoted: Depression is said to affect more than 20 million people in the United States, but psychiatrist James Gordon argues that it's not disease. In his book, Unstuck, Gordon makes the case that most people don't need drugs to feel better.

Quoted: Researchers report that they've been able to use tobacco plants as biological factories to manufacture specialized proteins needed for an experimental individualized cancer therapy. The researchers are studying a potentially fatal form of non-Hodgkin's lymphoma.

Quoted: The National Institutes of Health has decided to cancel a large-scale test of an experimental AIDS vaccine, saying that more focused research is needed on the way such vaccines interact with the immune system. The trial, known as PAVE 100, was designed to include more than 8,500 people.

Quoted: In the past, scientists discounted the importance of the spleen, a five-ounce organ located in the upper left abdomen. Now, there's an increasing understanding of the spleen's importance as a part of the immune system, filtering blood and removing old blood cells.

Quoted: In a time of ever-increasing energy prices, this week President Bush overturned a long-standing executive order banning offshore oil exploration in certain parts of the country. The move is largely symbolic at this point, as additional congressional action would be needed to fully open up offshore oil drilling.

Quoted: Earthrace circumnavigated the globe in just 60 days, 23 hours and 49 minutes – 14 days less than the fastest previous time for a powerboat. And they did it all with biofuels, including some converted from human fat removed via liposuction.

Quoted: Several years ago, researchers proposed the provocative idea that bacteria living in the human stomach could be responsible for the development of some stomach ulcers. New research suggests, however, that those bacteria may not be all bad.

Quoted: Dr. Michael DeBakey, a man who received a Congressional Gold Medal for his many accomplishments and contributions to the nation, died last week at the age of 99. He was responsible for many of the processes that have become a common part of the medical arsenal, including coronary bypass surgery and ventricular assist devices.

Quoted: Thousands of megawatts of solar-generated power might not see the light of day if Congress doesn't act soon. Ira Flatow also looks at how you can bring solar to your sockets faster, without taking out a second mortgage.