The five most popular stories on CNN.com during the last 24 hours, according to Newspulse.
Teacher admits to teen sex? Police in California say a 33-year-old teacher turned herself in, and admitted she had sex with a 14-year-old student.
Three strong earthquakes strike Chile: Three strong earthquakes rocked Chile on Thursday, causing significant damage in at least one city, the country's newly inaugurated president said Thursday.
Some nurses paid more than family doctors: Despite the growing shortage of family doctors in the United States, medical centers last year offered higher salaries and incentives to specialist nurses than to primary care doctors, according to an annual survey of physicians' salaries.
Corey Feldman on Haim‚Äôs death: Actor Corey Feldman reacts to the death of his best friend and "Lost Boys" co-star, Corey Haim.
Judge blocks release of photos of dead hiker: Photos of the nude and decapitated body of a murdered hiker, sought by a writer on assignment for Hustler magazine, will not be released, a judge in Georgia ordered Wednesday.
The cost of the Pentagon's newest fighter jet will be more than double the original price, solidifying the F-35 Joint Strike Fighter as the most expensive Pentagon weapons program ever.
At a Capitol Hill hearing on Thursday, the Pentagon's chief weapons buyers said numerous problems over the almost ten year program have forced the cost of the aircraft to go from $50 million a jet in 2001 to something closer to $113 million today.
[Update: 8:25 p.m.]¬†The 70-year-old senator visited his wife and daughter shortly after hearing of the accident at 2:15 p.m., then returned to his office in the Capitol to work on health-care legislation, said Reid spokesman Jim Manley.
At about 5 p.m., President Barack Obama called Reid to check on his wife and daughter and, shortly after 7 p.m., Reid was headed back to the hospital, spokesman Manley said.
[Update: 7:39 p.m.]¬† The wreck occurred in the northbound lanes of Interstate 95 in Fairfax County at 1:10 p.m., when the 2005 Honda Odyssey driven by the daughter began braking in stop-and-go traffic and was rear-ended by a tractor-trailer, according to a Virginia State Police report.
"The impact forced the Honda Odyssey to rear-end the vehicle in front of it, a 1997 Jeep Grand Cherokee," it said. "The Jeep Grand Cherokee was then forced into the next lane over where it struck a 2007 Chevrolet Cobalt."¬†¬†¬†¬†¬†
[Update: 8:20 p.m.] Authorities are now investigating six possible cases of bacterial meningitis - including two deaths - in rural Oklahoma elementary school students.
The Rogers County Health Department and Oklahoma State Department of Health said two children from Oologah-Talala public school district have died from the disease. One of them was an 8-year-old, said Superintendent Rick Thomas.
A finding by the Senate parliamentarian has narrowed Democrats' options for passing health care reform, and could force House Democrats to approve the Senate health care bill and have the president sign it into law before they vote on changes to the measure.¬†
New York Attorney General Andrew Cuomo has appointed a former chief judge of the State Appellate Court to oversee two investigations of Gov. David Paterson.¬†¬†
Judge Judith Kaye was officially appointed independent counsel to the New York State Attorney General on Thursday.
President Obama has announced an ambitious goal to double exports in the next five years. He appeared Thursday before the Export-Import Bank's annual conference to lay out some details.¬†
"We remain the number one exporter of goods and services in the world. But we shouldn't be satisfied with being number one," he said. "When other markets are growing, and other nations are competing, we need to get even better."
Fact Check: Is the United States the No. 1 exporter of goods and services in the world?
While the debate over health care has at times bordered on the absurd, some opponents of the bills passed by the Democratic-led Congress have raised questions of fundamental importance to American democracy - namely, whether some of the proposals are constitutional.¬†
While the arguments have hinged on a variety of components of the bills, the most oft-repeated concern relates to the individual mandate. Because the individual mandate is part of all three health care proposals, those passed by the House and the Senate and the one proposed by President Barack Obama, this challenge is potentially the most serious.¬†
As wrangling over the fate of health care reform continues, the CNN Fact Desk takes a look at the concern that a provision of the health care bill violate the governing document of the United States.¬†
Fact Check: What are the arguments concerning the constitutionality of the individual mandate? Do they have any validity?¬†¬†
The autopsy on Corey Haim revealed the actor's heart was enlarged and his lungs were filled with water when he died, Haim's manager said.
The Los Angeles County coroner told Haim's mother that her son suffered from pulmonary congestion, manager Mark Heaslip said.
Heaslip said this was evidence that Haim's death was not caused by a drug overdose, but Brian Elias with the coroner's office said they are waiting for toxicology tests before deciding what killed Haim.
A look at highlights from the day's business news:
Stocks manage gains
Stocks gained Thursday, erasing earlier losses to lift the Nasdaq and S&P 500 to 18-month highs, as investors eyed the day's jobs and trade news and the direction of the U.S. dollar.
The Dow Jones industrial average added 44 points or 0.2% according to early tallies, ending at a six-month high.
According to a 2004 survey by the U.S. Bureau of Labor Statistics, a little more than 3 percent of full-time wage and salary workers work night shifts - defined as shifts between the hours of 9 p.m. and 8 a.m.¬† Another 2.5 percent work rotating shifts, which can include overnight shifts.
The Cleveland Clinic in Cleveland, Ohio, reports that overnight workers suffer from a condition called Shift Work Sleep Disorder, with symptoms including insomnia, excessive sleepiness, difficulty concentrating and lack of energy. Lately, there have been some studies suggesting that overnight work can have more serious health effects.
Fact Check: Is working overnight hazardous to your health?
After reviewing the case of a woman who died at New Orleans, Louisiana's Memorial Hospital in the days following Hurricane Katrina, coroner Frank Minyard said Thursday he cannot classify her death as a homicide.
Minyard said he hopes his findings on the death of Jannie Burgess, 79, will mark "the end of the Memorial Hospital hurricane situation."
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