a surge in anti-semitism. more than double this may compared to may 2020 as nick watt reports. >> we feel unsafe. >> reporter: a hole cut in the fence, this on the synagogue door, a swastika and slur. three weeks ago a rock smashed through the window of another synagogue in the same city. >> sadly it's a new reality we're living and weaver's seen this rise across america. >> reporter: in the bronx there was a spate of attacks on synagogue, stones also reportedly thrown at volunteers trained by a group called css to protect temples. >> we've had at least 50 new synagogues that reached out in the last month. it's becoming real for our volunteers and the community. we're trying to give them the best training we possibly can to deal with this. >> reporter: when this began, mid-may in gaza and israel, anti-semitic incidents in the