Is Labour anti-Semitic?

Is the Labour Party anti-Semitic? I don't think anyone will ever know all the facts, but it seems to me that the media are playing up this label because

1. it's sensational, and the media love sensation, and
2. it's an easy way to tar Labour's image without actually analysing its policies or politics.

I'm Jewish by birth (though I became a Christian in my teens) - so that makes me Jewish by race, if not religion. I'm also a Labour supporter. That's because I believe that Labour's policies are the best for the country as a whole (and I'm not just talking 'Brexit' here). My take on Labour's so-called anti-Semitism is as follows: