The Express newspaper reported that U.K. officials have intelligence suggesting al-Qaida has been planning a high-profile attack on five commercial flights sometime before Christmas. Mark Wilson/Getty Images hide caption

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Erol Incedal, seen in this court artist's sketch, appears at the Old Bailey in London. The court found him guilty last week of possessing a bomb-making document. Elizabeth Cook/PA Photos/Landov hide caption

itoggle caption Elizabeth Cook/PA Photos/Landov

The Saltire, the flag of Scotland, flies near the Union Jack in Gretna in Scotland. Some economists say Thursday's vote on Scotland's independence could have wide-ranging economic impacts. Andy Buchanan/AFP/Getty Images hide caption

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A tourist wears a poncho decorated with the national flag of Scotland to shelter from the weather in Scotland's capital, Edinburgh, on Monday. Matt Dunham/AP hide caption

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Marina Litvinenko, the widow of former Russian intelligence officer Alexander Litvinenko, says she is "relieved and delighted" with the U.K. government's decision to open a public inquiry into the former KGB agent's death in 2006 by radiation poisoning. Matt Dunham/AP hide caption

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Mayor of Leicester Peter Soulsby near a screen displaying a statue of King Richard III on Friday, after a decision to permit the monarch to be buried at Leicester Cathedral in central England. Darren Staples/Reuters/Landov hide caption

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A greater rhea grazes in a canola field near Utecht in northern Germany in 2012. A similar bird has been loose in the English countryside for the past month. DPA/AFP/Getty Images hide caption

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