French President Francois Hollande said on Tuesday private security firms have hired an additional 3,000 people for the European Championship football tournament.After last week's Brussels attacks that killed at least 35 people, French authorities decided to continue with Euro 2016 from June 10-July 10 as planned, including the fan zones where spectators gather to watch games on large screens.Hollande said 2.5 million people are expected to attend the matches in 10 French cities, and about 5 million are expected to visit the open-air areas.Referring to the high risks of attacks, Hollande said in a speech to sports professionals in Paris that "we must show that sport, like culture, like our lifestyle, will not yield to this pressure and this threat."Two suicide bombers blew themselves up in the departure hall last Tuesday, wrecking the concourse, and shortly afterwards another bomber hit the Brussels metro, leaving 35 people dead in Belgium's worst-ever terror attack.On Nov. 13, 2015, France was hit by its worst terror attack since World War II. At least 130 people died, and more than 350 were wounded, with dozens still in critical condition.