Is Kane and the undertaker brothers?

Actually yes they are. If you watch WWE then you will clearly see that Big Show and Jericho are taking The UnderTaker down, but all of a sudden Kane The Undertakers brother comes and kicks Big Show's and Jericho's asses. The commenter will say Kane is Undertakers BROTHER and they will go head to head the brothers of destruction will face Big Show and Jericho. So it will be Kane & Undertaker brothers of destruction VS Big Show and Jericho. By Hadi