Word: a2
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What causes the spasm is not yet clear, but there is anecdotal evidence that psychological stress plays a role. Researchers also know that clumping blood platelets release thromboxane A2, a substance that causes the constriction of blood vessels and therefore can trigger spasm...
...including the 58-ton American M60. Top speed of the T-72 is 43 m.p.h. on level ground. Some Western armor experts fear the T-72 may be able to outperform laser-equipped tanks, such as the British Chieftain, the West German Leopard 2 and the older U.S. M60 A2, now deployed in Western Europe; none of these possess as sophisticated a targeting system as the new Soviet model's. The U.S. does not expect to deploy its new-generation XM1 tank (called "the best in the world" by U.S. Army Secretary Clifford Alexander Jr.) until...
...Besides the CIA and the FBI, the community's principal members are the Pentagon's Defense Intelligence Agency, the National Security Agency, the Department of State's Bureau of Intelligence and Research, the Air Force's A2, the Army's G-2 and the Navy's Office of Naval Intelligence...
...agency operates under the direction of the Secretary of Defense. Charged with assessing the worldwide military situation, the Defense Intelligence Agency coordinates the conflicting and not infrequently self-serving intelligence operations of the three armed services-Army's G2, Office of Naval Intelligence and Air Force's A2. DIA men tend to view CIA men as the spoiled darlings of the intelligence community. The CIA, which once dealt directly with military intelligence services, resents DIA'S role as middleman, and tends to look upon its members as minor-league spies...
...immune to the radically different "Asian A2" and Hong Kong strains that erupted in those years. The Pasteur scientists do not claim to have anticipated such a major mutation. But in between such large alterations, the virus undergoes a process called "antigenic drift," in which subtle changes occur in the virus' protein overcoat. The now prevalent London flu strain represents one of several such minor changes in the basic Hong Kong virus of 1968, and generally available vaccines are only 50% effective against...