Recognizing that tumor cells lurking in the body after cancer treatment will cause a relapse of cancer, scientists are working to employ nature’s army-the immune system-to destroy remaining enemy outposts.
Today’s programs for defending against missile attacks are less ambitious than the Reagan-era Star Wars efforts. But the new systems are still too easily foiled, and their deployment would slow arms cuts.
Collecting, selecting, and refining the stories that go online, web-based magazines are transforming the internet experience. But these embryonic publications don’t yet fully exploit the new medium’s potential-and their financial viability is in question.