Actually this started with Chirac. When the U.N. threatened Iran on sanctions they responded that they would shut off the oil lines leading to Europe. Since Iran is a major supplier to France, Chirac added "economic" terrorism to the law that gives them the right to launch their nukes.

In a major defence policy speech, Chirac said: ??The nuclear deterrent is not intended to deter fanatical terrorists. But the leaders of states who use terrorist methods against us, as well as those who consider using in one way or another weapons of mass destruction, must understand that they would expose themselves to a firm and appropriate response on our part. This response could be a conventional one. It might also be of a different kind.?

Among those interests to be protected the president included ??the guarantee of our strategic supplies and the defence of allied countries.? In this respect the president is obliged to estimate whether ??the extent and the possible consequences of a threat or an intolerable extortion fall ... into the field of our vital interests?.
French president Chirac threatens nuclear retaliation in the event of terrorist attacks

Have a good one!:s4: