Word: harmless
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...weapons were brutal: pipe bombs set inside harmless-looking packages that exploded when moved. The first victim, Steven Christensen, 31, a Salt Lake City businessman and Mormon bishop, was killed outside his office on Oct. 15, 1985. A few hours later in a nearby suburb, a second bomb took the life of Kathleen Sheets, 50, the wife of J. Gary Sheets, a former partner of Christensen...
...break stride as he mounted the steps alongside the Jihadair DC-10. "Ah, they're harmless. They're already obsessed with the annihilation of Iraq. By the time they finish that massacre there won't be any Iranians between the age of eight...
...more hopeful. Dr. Marc Girard of the Pasteur Institute in Paris announced last week that a vaccine developed there should be ready for human trials sometime next year. The vaccine was developed by adding protein fragments from the AIDS virus to vaccinia, the virus that causes cowpox and is harmless to humans...
...says Fields, "you bring out the guided missiles." These are antibodies -- produced by B cells upon the order of helper T cells -- that are custom-designed to home in on certain antigens, distinctively shaped proteins that characterize a particular type of virus, and destroy the enemy or render it harmless...
...even more dramatic development, a dozen teams of scientists are working on techniques to use viruses for "gene therapy" on humans with genetic disorders. Using recombinant DNA techniques, they plan to make retroviruses harmless by removing key genes, and to endow the viruses with other genes -- the ones lacking or inoperative in people with genetic diseases. These re-engineered retroviruses would be employed as vectors that would invade the appropriate human cells and insert the healthy genes correctly into the cells...