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NEW YORK, Nov. 10 (UPI) -- U.S. markets wavered at the start of trading Tuesday after a strong rally Monday that sent the Dow Jones industrial average up 203 points.

COLD SPRING HARBOR, N.Y., Nov. 10 (UPI) -- U.S. scientists say they might have found a way to stop the growth of certain aggressive tumors for which there are currently no treatments.

FORT HOOD, Texas, Nov. 10 (UPI) -- The man accused of killing 13 people at Fort Hood, Texas, warned U.S. Army physicians 18 months ago against deploying Muslim soldiers to fight other Muslims.

WEST LAFAYETTE, Ind., Nov. 10 (UPI) -- Purdue University scientists say they've developed a technique that uses nanomedicine to help repair damaged spinal cord nerve fibers.

WASHINGTON, Nov. 10 (UPI) -- Nearly 200 key policy jobs in Barack Obama's administration remain vacant a year after he was elected president.

IRBIL, Iraq, Nov. 10 (UPI) -- Yazidi and Shabak minorities under attack in Iraq's Nineveh province are not receiving government protection, human rights advocates say.

ISTANBUL, Turkey, Nov. 10 (UPI) -- Syrian President Bashar Assad ratcheted up the rhetoric against Israel, calling for action against the Jewish state if it fails to return the Golan Heights.

TRENTON, Ontario, Nov. 10 (UPI) -- A Canadian teenager was recovering Tuesday, a day after military rescuers in aircraft plucked him from a free-floating ice floe in Hudson Bay.

JERUSALEM, Nov. 10 (UPI) -- Actions by the international community could lead to internal change in Iran, Israel's chief of staff said.

WASHINGTON, Nov. 10 (UPI) -- Former U.S. President Bill Clinton heads to Capitol Hill Tuesday to speak to the Senate Democrats' weekly lunch and push for healthcare reform, a memo said.

NEW YORK, Nov. 10 (UPI) -- Crude oil prices rose to nearly $80 per barrel on the New York Mercantile Exchange, despite the dissipating strength of a gulf storm.

SAN DIEGO, Nov. 10 (UPI) -- U.S. scientists say they've developed tools that allow them to visualize how different populations of cells communicate with each other.

Economists may hope stock markets rise slowly, but investors have breached the storm walls in recent days, putting U.S. markets into turbo drive recently.

OTTAWA, Nov. 10 (UPI) -- Canada's minority Conservative government won two more parliamentary seats in by-elections held to fill vacancies.

NEW YORK, Nov. 10 (UPI) -- 'Sesame Street,' the daytime staple of public television that taught the alphabet, counting and lessons about getting along, opened its 40th season Tuesday.

WINSTON-SALEM, N.C., Nov. 10 (UPI) -- U.S. researchers say they have been able to grow new penile tissue in labs and implant it into rabbits to restore their sexual function.

TEHRAN, Nov. 10 (UPI) -- Three U.S. hikers who said they became lost and inadvertently crossed from Iraq into Iran, have been charged with espionage.

OSAKA, Japan, Nov. 10 (UPI) -- Japanese police in Osaka say they have arrested the man wanted in the 2007 slaying of British teacher Lindsay Ann Hawker.

SEOUL, Nov. 10 (UPI) -- Ships from the North and South Korean navies exchanged gunfire Tuesday off the western coast of the Korean Peninsula.

FORT HOOD, Texas, Nov. 10 (UPI) -- Investigators are looking again at a series of messages the alleged Fort Hood, Texas, shooter sent to a radical Muslim cleric.