Last Updated: Thursday, May 30, 2013, 13:51
Two threatening letters sent last week to New York Mayor Michael Bloomberg contained the poison ricin, the city`s police department announced Wednesday.
Last Updated: Wednesday, May 29, 2013, 18:59
The discovery took place in the rocky recesses of the Sierra del Mayor south of Mexicali, capital of Baja California, after three years of explorations with the collaboration of the Cocopah Indians.
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