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Pin trading has become a hallmark of the Olympics in recent decades — and not just for athletes. An official trading center in Milan was a hotspot for longtime collectors and curious newcomers alike.
The Pentagon and the Energy Department have airlifted a small nuclear reactor from California to Utah, demonstrating what they say is potential for the U.S. to quickly deploy nuclear power for military and civilian use.
The 5th U.S. Circuit Court of Appeals has cleared the way for a Louisiana law requiring displays of the Ten Commandments in public classrooms to take effect.
Many U.S. cities have too many office buildings and not enough homes. Developers are now converting some old offices into apartments and condos, but it's going slowly.
Researchers followed more than 400,000 teens until they were adults. It found that those who used marijuana were more likely to develop serious mental illness, as well as depression and anxiety.