French flags hang from a windows of an apartment building in Paris, France, November 27, 2015. The French President called on all French citizens to hang the tricolour national flag from their windows on Friday to pay tribute to the victims of the Paris attacks during a national day of homage. (Photo by Eric Gaillard/Reuters)





A woman installs blue, white and red candles, the colours of the French flag, during a tribute to the victims of Paris attacks, at the Place de la Republique in Paris, France, November 27, 2015 as the French President called on all French citizens to hang the tricolour national flag from their windows on Friday to pay tribute to the victims of the Paris attacks during a national day of homage. (Photo by Eric Gaillard/Reuters)





A woman stands on a balcony behind a French flag at an apartment building in the Place de la Republique in Paris, France, November 27, 2015 as the French President called on all French citizens to hang the tricolour national flag from their windows on Friday to pay tribute to the victims of the Paris attacks during a national day of homage. (Photo by Eric Gaillard/Reuters)





Blue, white and red brassieres, the colours of the French national flag, hang from a balcony in Marseille, France, November 27, 2015 as the French President called on all French citizens to hang the tricolour national flag from their windows on Friday to pay tribute to the victims of the Paris attacks during a national day of homage. (Photo by Jean-Paul Pelissier/Reuters)





Blue, white and red shirts, the colours of the French national flag, hang from a balcony in Marseille, France, November 27, 2015 as the French President called on all French citizens to hang the tricolour national flag from their windows on Friday to pay tribute to the victims of the Paris attacks during a national day of homage. (Photo by Jean-Paul Pelissier/Reuters)





A French national flag hangs from a balcony in Marseille, France, November 27, 2015 as the French President called on all French citizens to hang the tricolour national flag from their windows on Friday to pay tribute to the victims of the Paris attacks during a national day of homage. (Photo by Jean-Paul Pelissier/Reuters)





A French flag appears on a big screen at the bottom of the statue of French Emperor Napoleon at the Hotel des Invalides in Paris, France, after a ceremony to pay a national homage to the victims of the Paris attacks, November 27, 2015. (Photo by Charles Platiau/Reuters)





A French flags is seen on a balcony in Paris in front of the Eiffel tower, France, November 27, 2015 as the French President called on all French citizens to hang the tricolour national flag from their windows on Friday to pay tribute to the victims of the Paris attacks during a national day of homage. (Photo by Charles Platiau/Reuters)





A French flag hangs from a window of a restaurant decorated for Christmas holiday season in Strasbourg, France, November 27, 2015 after the French President called on all French citizens to hang the tricolour national flag from their windows to pay tribute to the victims of the Paris attacks during a national day of homage. (Photo by Vincent Kessler/Reuters)





A French national flag flies as workers stand on the roof of the Villa Mediterranee in Marseille, France, November 27, 2015 as the French President called on all French citizens to hang the tricolour national flag from their windows on Friday to pay tribute to the victims of the Paris attacks during a national day of homage. (Photo by Jean-Paul Pelissier/Reuters)





A French national flag hangs over a cafe terrace in Marseille, France, November 27, 2015 as the French President called on all French citizens to hang the tricolour national flag from their windows on Friday to pay tribute to the victims of the Paris attacks during a national day of homage. (Photo by Jean-Paul Pelissier/Reuters)





French soldiers patrol in front of the Arc de Triomphe on the Champs Elysees avenue in Paris, France, as part of France's national security alert system "Sentinelle" after Paris deadly attacks November 27, 2015. (Photo by Charles Platiau/Reuters)





Eliane Ciesco, citizen of Nice, wearing a dress in the colors of the French flag, walks in a street of Nice, southeastern France, Friday, November 27, 2015. French President Francois Hollande called on his compatriots to hang French tricolor flags on Friday to pay homage to the victims of the Nov. 13 attacks, an unusual appeal by a Socialist leader in a country where flag-waving is often associated with nationalists and the far right. (Photo by Lionel Cironneau/AP Photo)