Senate Republicans squeeze Trump for Russian rewards

Senators have already proposed harsh repercussions, including the imposition of new sanctions and the designation of Moscow as a state sponsor of terrorism, a step that the Trump administration has so far refused to take. But some lawmakers urge restraint, after White House officials briefed House Republicans on Monday and …

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Tracking coronavirus cases is difficult amid new surge

HOUSTON (AP) – US health departments that are using contact trackers to contain coronavirus outbreaks are fighting to bolster their ranks amid a surge of cases and resistance to cooperation from those infected or exposed. With very few contact trackers trained to handle the growing number of cases, a heavily …

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Multifunctional nanofiber protects against explosions

Para-aramid nanofiber sheets on Twaron® sheets after the projectile fragment simulation test. Credit: Grant Gonzalez / Harvard SEAS Since World War I, the vast majority of American combat victims have come not from gunshot wounds but from explosions. Today, most soldiers wear a heavy bulletproof vest to protect their torso, …

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