Meaning behind my recurring apocalyptic/ terrorism dream...?

Your dream, I would say, is a sign to you. Apparently you have a "churchy" up-bringing and have a conscience that is tender towards living a Christian life. You are correct in believing that the end is near. I'm not one of those 2012 doom believers either, but it doesn't take but a comparative look around to see the end coming. I would advise you to read and obey Acts 2:38. Then find a church that preaches the truth and get involved. This is a Pentecostal/Apostolic faith.