Cow disease from sperm?

That one continent over there never ceases to amaze me with "scary news" or what could be blown up as such.
Some people seem to have an endless imagination to create more things to be alerted about.
Having said this, the whole sperm swapping gets me kinda suspicious too.
We had cases by now where the children conceived like this demanded to know about their biological father, got the information denied and got a kind of identity crisis from this.
I don't know, can't people just fuck like in earlier times?