Word: cn
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...weapon in flushing the enemy from his tunnel cities has been non-toxic CN tear gas-the use of which has brought screams of protest from critics in the U.S. Military men argue that gas is the only way of safely separating noncombatant Vietnamese hiding underground from Viet Cong. Often the gas is pumped into the tunnel complexes by means of long hoses attached to gasoline-driven pumps, but gas grenades are usually used. Last week U.S. troops in Tay Ninh were hit by Communist gas grenades. With that, the argument against U.S. use of nontoxic gas went...
...have been easy enough for Utter and his men to wipe them out with grenades or incinerate them with flamethrowers. Trouble was, the V.C. had herded 390 women and children into the tunnel with them. So Utter chose the humane way, shoving into the tunnel mouth 48 canisters of CN, a mild tear gas that is briefly aggravating to eyes and nose, has no other effect whatsoever. Out streamed the Viet Cong, and the 390 captives into the hands of the marines...
...Damned Unpleasant." The furor was created not by "secret gases" but by three common riot-control gases that the U.S. has been supplying to South Vietnamese forces since 1962: CN (chloroacetophenone), a fragrant-smelling tear gas that also irritates the skin, loses effectiveness in about three minutes; CS (o-chlorobenzalmalononi-trile), a pungent agent developed by the British, of all people, that stings the eyes, causes chest pains, choking and vomiting for up to 15 minutes; and DM (Adamsite), a peppery-smelling gas that causes diarrhea, chest and head pains, and lasts up to two hours...
...deadliest form of the disease is inflammation of the brain covering. Cryptococcal meningitis was always fatal until the antifungal drug, amphotericin B, came into use six years ago. Now the death rate is down to about 30% of meningitis victims. But nobody knows exactly how many cases of CN lung disease there are because the vast majority are not diagnosed correctly. New York City records about 20 cases of CN meningitis each year, with several deaths...
Roost No More. In other U.S. cities, many health authorities pooh-pooh the idea that pigeons are a common cause of illness. But downplaying the danger is a mistake. CN meningitis is increasing in Chicago, and one suburban doctor has had five cases this year...