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Science 24 January 1997:
Vol. 275. no. 5299, pp. 474 - 475
DOI: 10.1126/science.275.5299.474
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News & Comment

Robert F. Service

In the wake of the Oklahoma City and Atlanta bombings, Congress asked the National Research Council to study whether to implement a nationwide plan for adding chemical "tags" to explosives. But a recent workshop in Washington, D.C., showed just how difficult it will be to settle on a workable plan.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)