Concern about immigration, Isis and the refugee crisis is rising Europe but the US is still more concerned about government powers and the economy, opinion polls have shown.
Separate surveys conducted by American pollsters Gallup, and YouGov in the UK, asked thousands of people what they believed the biggest problems facing their countries were.
Although core issues such as healthcare, unemployment and terror attacks made it into the top 10 concerns for both countries, their prominence was starkly different.
When asked to select three of their biggest concerns, almost half of the 1,700 British adults questioned picked immigration, closely followed by Isis and health.
The economy, Britain’s membership of the EU and refugee crisis also appeared prominently in the survey conducted last month, as the Government continued to strike a “new deal” in the Union before next year’s referendum.
Separate analysis by Ipsos Mori in August found that concern over immigration spiked during the summer’s Calais crisis, when refugees from camps at the French port blocked motorways during attempts to board lorries and ferries to the UK.
Their research found that Conservative voters, over-65s and people defined as “skilled working class” were most likely to be concerned about immigration levels, with professionals, Londoners and those aged 25-24 on the other end of the scale.
Meanwhile, the American government was rated as the biggest problem facing the US in 2015, according to a poll released by Gallup last month.
Dissatisfaction with politicians topped concerns over the economy for the second year running, with 16 per cent of Americans citing some aspect of government as a worry, including President Barack Obama and Congress.
The economy came second, followed by unemployment and immigration. Unlike the YouGov poll, respondents were only required to select one option.
The world mourns Paris attacks - in pictures
The world mourns Paris attacks - in pictures
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Members of the public gather to lay flowers and light candles at La Belle Equipe restaraunt on Rue de Charonne in Paris
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People lay a memorial to honour victims of the Paris terror attacks at Federation Square in Melbourne, Australia
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Soccer fans display the colors of the French flag in response to the deadly terrorist attack in Paris, France before the soccer match between the New York Cosmos' and the Ottawa Fury for the North American Soccer League championship at Hofstra University in Hempstead, New York, USA
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Pakistani Civil society activists shout slogans during a protest against Isis militants near the French consulate for the victims of the 13 November Paris attacks in Karachi, Pakistan
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People gather and view messages written on the ground at Place de la Republique in Paris
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French flags and a note reading "We will not let you spoil our children's lives" at the site of the attack at the Cafe Belle Equipe on rue de Charonne in the 11th district, in Paris
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A rose is placed beside a bullet hole at La Belle Equipe restaraunt on Rue de Charonne following the terrorist attack in Paris. As France observes three days of national mourning members of the public continue to pay tribute to the victims of deadly attacks
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People gather for a national service for the victims of the terror attack at Notre Dame cathedral in Paris
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Bono and band members of U2 pay their respects and place flowers on the pavement near the scene of yesterday's Bataclan Theatre terrorist attack in Paris
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A man kneels as he pays tribute to victims at Place de la Republique near the deadly attack sites in Paris
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Tributes to the victims at the Place de la Republique square in Paris
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An electronic billboard on a canal show solidarity with Paris in Milan
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People lay down flowers and light candles to tribute victims of Friday's attacks in Paris as the Brandenburg gate is illuminated in blue, white and red in the colors of the French flag, in Berlin
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A man leaves flowers as a tribute following the deadly attacks in Paris, outside the French consulate in Istanbul
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People take pictures of flowers placed in bullet holes in the window of a Japanese restaurant next to the cafe 'La Belle Equipe'
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People gather at a makeshift memorial next to the Bataclan theatre in Paris on November 14, 2015,
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A woman carrying flowers cries in front of the Carillon cafe and the Petit Cambodge restaurant in Paris
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People gather in front of flowers that were laid outside the French embassy in Rome
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People react near the cafe 'La Belle Equipe' at the Rue de Charonne
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A young girl places a candle in front of the Carillon cafe in Paris
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Flowers placed outside the cafe 'La Belle Equipe' at the Rue de Charonne in Paris, the scene for one of the attacks
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A woman is comforted by others outside the Carillon cafe and the Petit Cambodge restaurant in Paris
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The Brandenbourg Gate featuring French national colors is pictured in Berlin, on November 14, 2015 a day after deadly attacks in Paris
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Flowers are laid in front of the French embassy in Rome
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A candle is lit next to flowers outside the French Embassy in Berlin
Last year was the second time in 15 years where no single issue had been chosen by more than a fifth of people, with those surveyed singling out a “constellation of problems” including ethical or moral decline, race relations and racism, federal debt and education.
Concern about terrorism spiked after November’s Paris attacks and the massacre in San Bernardino, the research found, while gun control peaked as an issue in October and December following mass shootings.
The European migrant crisis appears to have had far less impact but mentions of immigration rose 10 per cent as the situation intensified in September, although analysts said it may also have been a result of Republican presidential debates gave to Donald Trump's views
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