France's President Francois Hollande (R) and visiting Italian Prime Minister Enrico Letta attend a joint press conference after their meeting at the presidential Elysee Palace in Paris, France, May 1, 2013. (Xinhua/Etienne Laurent)

France's President Francois Hollande (R) and visiting Italian Prime Minister Enrico Letta attend a joint press conference after their meeting at the presidential Elysee Palace in Paris, France, May 1, 2013. (Xinhua/Etienne Laurent)

France's President Francois Hollande (L) meets with visiting Italian Prime Minister Enrico Letta at the presidential Elysee Palace in Paris, France, May 1, 2013. (Xinhua/Etienne Laurent)

France's President Francois Hollande (L) meets with visiting Italian Prime Minister Enrico Letta at the presidential Elysee Palace in Paris, France, May 1, 2013. (Xinhua/Etienne Laurent)

France's President Francois Hollande (L) meets with visiting Italian Prime Minister Enrico Letta (2nd R) at the presidential Elysee Palace in Paris, France, May 1, 2013. (Xinhua/Etienne Laurent)