Red Heifers and Antichrist?

While Jewish groups like the reconstituted Sanhedrin and the Temple Institute are thrilled to have red heifer candidates for religious purposes, others are concerned. Some Jews and some Muslims believe that Israel is being duped by certain Protestants who wish to bring about the time of the final Antichrist. What is a "red heifer'? Does the "fate of the world" or "peace" in the Middle East depend on one? Will animal sacrifices be resumed? Is a massive temple in Jerusalem needed to resume sacrifices? …