ceo doug oberhelm joins us now first on cnbc. the tunnel could be an oncoming train ready to slam. do you feel like maybe things are lifting a little bit for caterpillar after a couple of rough years? >> good morning, joe. '16 will be rough and challenging again, i think. given all the things going around us. i'm happy with our performance in '15. i hope the light at the end of the tunnel is one of our locomotives coming across track. we started out in 2015 looking for 50 billion in sales. and $4.75 before we get to restructuring. we ended up 11 cents short of that with all the puts and takes and currency issues and ups and downs on 47 billion. a lot of hard work by our team here and around the world. >> i hope, you know, some day wish we love the big heavy earth moving equipment. you can't do that with a facebook application. you can't build a dam or anything or move that much earth. there's always, obviously, always going to be a place for heavy industry and caterpillar, i don't know, economic times make it difficult to see whe