I love this kind of discussions despite the fact that they drain a lot of popcorn!

Last week, the leader of Israel’s Chief Rabbinate — a bellwether rabbinical council for religious certifications in Judaism — declared that an Israeli company’s lab-grown steak is “pareve.” That means, in his view, it is not milk or meat and that therefore the eating of the two together by those who follow a kosher diet is not forbidden.
But the declaration was greeted with surprise by Rabbi Menachem Genack, the chief executive of the Orthodox Union Kosher Division in New York. Orthodox Union Kosher is an influential federation of Orthodox synagogues in the United States and Canada. Genack, in an interview with The Washington Post, suggested that his organization may take a different view. More here