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WASHINGTON – Federal authorities are investigating two e-mail scams, including one targeting families of soldiers killed in Iraq, that claim to be connected to the Homeland Security Department (search). The scams “are among the worst we have ever encountered,” Michael J. Garcia, director of the department’s Immigration and Customs Enforcement …

LITTLE ROCK, Ark. – A train slammed into an ambulance that apparently tried to get out of its path, but stopped at a rail crossing, killing all three paramedics on board. The patient in the vehicle survived, officials said. Paramedics Jeff Ferrand, 37, and John Rook, 23, died at the …

A newly invented dental paste (search) could silence the dreaded whine of dentists’ drills, fixing early cavities without fillings. The paste was developed by researchers including Kazue Yamagishi, DMD, from Japan’s FAP Dental Institute. Their report appears in the Feb. 24 issue of the journal Nature. Ordinarily, dental cavities are …