MARTIN HIMEL:

Even before the recent attack on the kosher market in Paris, anti-Semitic protests were intensifying. There were a number of Jewish store owners who were forced to lock themselves in during one protest, after Israel's war with Hamas last summer in Gaza.

Between January and July 2014, according to data gathered by Jewish groups and the French government, the number of anti-Semitic acts in France nearly doubled compared to the same period in 2013. The same figures show half of all racist attacks in France target Jews, even though they number less than one percent of the population.

And years ago at another protest in Paris, Muslims demonstrated, chanting "Khaybar ya-Yahud," which means that Mohammed's army will crush the Jews as they did in Khaybar in the seventh century.

Radical Islamic activists had attacked Jews years before the recent kosher market kidnappings and murders. In 2012, that buildup of hatred against Jews led to a bloody onslaught perpetrated by a radical Islamic terrorist.

Mohammed Merah, a French radical Muslim shot and killed a Rabbi, his two small sons, and an eight year old girl at the entrance of a Jewish school in Toulouse, a city about 420 miles south of Paris. It was one of the worst anti-Semitic attacks in Europe since World War II.