Kashrut

I do not understand why some people keep chalav Yisrael today. Do they really think that someone is adding pig's milk? My friend quoted his rav that it is more important to keep chalav Yisrael today than it ever was before. How could this be?

In many places, the Torah forbids the consumption of blood. In the parsha of Acharei Mot, this prohibition of blood is mentioned. In Kedoshim there are nine references to blood, in the context of different prohibitions. This makes it appropriate to discuss the laws of preparing livers according to halacha.

Is it permissible to buy popcorn from a non Jewish cinema since popcorn in itself is normally kosher?