By Louis Charbonneau UNITED NATIONS (Reuters) – France appealed on Thursday for U.N. member states to work together on an international legal framework that would make social network providers share responsibility for the use of their platforms to spread messages promoting violence. "There are hate videos, calls for death, propaganda that has not been responded to, and we need to respond," Harlem Desir, French state secretary for European affairs, told reporters on the sidelines of a U.N. General Assembly meeting on the rising threat of anti-Semitism. The French call for a radical shift in the way governments treat social networking companies such as Facebook and Twitter came two weeks after Islamist militants killed 17 people in Paris at a satirical magazine and a Kosher supermarket. "We must … establish a legal framework so the Internet platforms, the large companies managing social networking, so that they're called upon to act responsibly." Michael Roth, German minister of state for Europe, echoed Desir's remarks.