this is a cnn special report. rising hate: anti-semitism in america. january 15th, 2022 was a bitter cold day in colleyville, texas. it was in the 30s in texas. doesn t usually get that cold. so when a visitor knocked on the door of congregation beth israel, rabbi charlie citron walker didn t think twice about welcoming him in. when i opened the door to just offer a word, he asked if we had a night shelter. so i let him in. i got him some tea. reporter: rabbi citron walker then began the sabbath service on zoom, with three congregants there in person. my back was turned away from the congregation.