| FILE - This Nov. 29, 2013 file photo shows part of the HealthCare.gov website on a computer screen in Washington. The White House had hoped the Oct. 1, 2013 launch of open enrollment would be a showcase for the upside of Obama's much-debated overhaul. Instead, the website became a symbol of dysfunction. The site gradually improved, but a wave of cancellation notices from insurers undercut Obama's oft-repeated promise that people who liked their existing coverage could keep it. | 
NEW YORK     (AP)
 -- The glitch-plagued rollout of President Barack Obama's health care 
overhaul was the top news story of 2013, followed by the Boston Marathon
 bombing and the dramatic papal changeover at the Vatican, according to 
The Associated Press' annual poll of U.S. editors and news directors.
 
The
 saga of "Obamacare" - as the Affordable Care Act is widely known - 
received 45 first-place votes out of the 144 ballots cast for the top 10
 stories. The marathon bombing received 29 first-place votes and the 
papal transition 21.
 
Other strong contenders 
were the bitter partisan conflict in Congress and the leaks about 
National Security Agency surveillance by former NSA analyst Edward 
Snowden.
 
Last year, the top story was the 
massacre of 26 children and staff at an elementary school in Newtown, 
Conn. That result came after a rare decision by the AP to re-conduct the
 voting; the initial round of balloting had ended Dec. 13, a day before 
the Newtown shooting, with the 2012 election at the top.
 
The first AP top-stories poll was conducted in 1936, when editors chose the abdication of Britain's King Edward VIII.
 
Here are 2013's top 10 stories, in order:
 
HEALTH
 CARE OVERHAUL: The White House had hoped the Oct. 1 launch of open 
enrollment would be a showcase for the upside of Obama's much-debated 
overhaul. Instead, the website became a symbol of dysfunction, providing
 Republicans and late-night comics with ammunition, and worrying the 
president's Democratic allies. The site gradually improved, but a wave 
of cancellation notices from insurers undercut Obama's oft-repeated 
promise that people who liked their existing coverage could keep it.
 
BOSTON
 MARATHON BOMBING: In seconds, a scene of celebration transformed into 
one of carnage, as two bombs exploded near the finish line of the Boston
 Marathon in April. Three people were killed and more than 260 injured, 
including at least 16 who lost limbs. Authorities soon identified two 
suspects - 26-year-old Tamerlan Tsarnaev, who died in a shootout with 
police, and his brother, Dzhokhar, 20, who faces multiple charges, 
including 17 that carry a possible death penalty. Though jolted by the 
bombings and a subsequent lockdown, the city rallied under the slogan 
"Boston Strong."
 
VATICAN CHANGEOVER: Pope 
Benedict XVI stunned Catholics around the world with his announcement in
 February that he would resign. The cardinal elected to succeed him, 
soon known as Pope Francis, proceeded to captivate many Catholics and 
non-Catholics alike with a new tone of openness, modesty and tolerance. 
Without challenging core church doctrine, he suggested it was time to 
rethink policy on divorce, focus more on serving the poor, and devote 
less rhetoric to condemnations of gay marriage and abortion.
 
DIVIDED
 CONGRESS: Opinion polls showed Congress with historically low approval 
ratings, and the key reason was seemingly intractable partisan conflict.
 Among the consequences were the harsh automatic spending curbs known as
 sequestration, the partial shutdown of the government in October, and 
bitterness in Senate after the Democrats used their majority to reduce 
the Republicans' ability to stall presidential nominations via 
filibusters.
 
NSA SPYING: The ripple effect 
continues, seven months after the world learned of Edward Snowden. The 
former NSA analyst leaked vast troves of secret documents detailing NSA 
surveillance operations, including programs that collected Americans' 
phone records and eavesdropped on allied leaders. After a stay in Hong 
Kong, Snowden spent a month in Moscow's airport before obtaining asylum 
in Russia. The leaks have roiled diplomacy, triggered lawsuits and calls
 for reform, and prompted warnings that terrorists could benefit from 
the disclosures.
 
GAY MARRIAGE: Capping decades
 of activism, the gay-rights movement won a monumental victory in June 
in the form of two Supreme Court decisions. One cleared the way for 
ending a ban on same-sex marriages in California, the most populous 
state. The other struck down a 1996 law passed by Congress that banned 
federal recognition of same-sex marriages. In subsequent months, Hawaii,
 Illinois and New Mexico boosted the number of states allowing gay 
marriage to 17.
 
NELSON MANDELA: A freedom 
fighter, a political prisoner, a statesman revered for preaching 
reconciliation in a nation torn by racial strife. Nelson Mandela was all
 that and more - the icon of the anti-apartheid movement and South 
Africa's first black president. With his death at the age of 95, his 
compatriots, world leaders and countless other admirers mourned the loss
 of a one-of-a-kind hero.
 
PHILIPPINES TYPHOON:
 There were dire warnings beforehand, but the toll wreaked by Typhoon 
Haiyan was still stunning in its scope after it struck on Nov. 8. More 
than 6,000 people died; hundreds more remain missing. The typhoon 
damaged or destroyed the homes of more than 16 million people, with 
rebuilding expected to take years.
 
SYRIA: The 
death toll mounted inexorably, past 120,000, as Syria's nearly 
3-year-old civil warfare raged on with no signs of resolution. The 
government of Bashar Assad did agree to eliminate its chemical weapons, 
but prospects for peace talks were complicated by infighting among 
anti-government rebels. Nearly 9 million Syrians have been uprooted from
 their homes, with many of them seeking refuge abroad.
 
MISSING
 WOMEN FOUND: The call for help came on May 6, and the revelations that 
followed were gripping and grim. A former bus driver, Ariel Castro, had 
abducted three women from the streets of Cleveland from 2002 to 2004 
when they were 14, 16 and 20. He periodically kept them chained, 
restricted access to food and toilets, and repeatedly raped and 
assaulted them until their escape. Castro pleaded guilty to multiple 
charges, and in September, faced with life in prison, hanged himself in 
his cell.