Name that Tune, this time a theme or two

So, I'm sure none of you are really working on Thursday. So, for your distraction, Name that Tune, again. This time around, there's a theme. Ok, there's two. There are also two songs that are specifically for two people (I'm looking at you, BP and TheMarty). All are welcome to play, even my Canadian friends ;). Rules: Again, there are none. Just please don't cheat. I will admit this time I had to get some Google help, but that was due to the theme, and the request for longer lyrics. A refresher: There are twenty song lyrics. Try to name the title and the artist. Bonus round: Name the two themes. If all 20 songs are named, there will be valuable prizes. Answers will be posted sometime next week. Play on, players:

1. Far - We've been traveling far - without a home - but not without a star
2. Devil without a cause - and I'm back with the beaver hats - and Ben Davis slacks - Thirty pack of Stroh's
3. It's just a small step for him - It's a nice break from Vietnam (filmed in a factory)
4. If tomorrow all the things were gone - I've worked for all my life - And I had to start again - with just my children and my wife
5. Come back home to the refinery - Hiring man says "Son if it were up to me" - I go down to see the VA man - He says "Son don't you understand"
6. Terrorists your game is through - 'Cause now you have to answer to - America, Fuck yeah
7. Bright lights - the music gets faster - look boy don't check your watch - not another glance
8. Colored lights can hypnotize - sparkle someone else's eyes - now woman, I said get away
9. Laughing on the bus - playing games with the faces - she said the man in the gabardine suit was a spy
10. I can't see myself at thirty - I don't buy a lacquered thirty - caught like flies - preserved for tomorrow's jewelry again
11. Yankee dollar talk - to the dictators of the world - In fact it's giving orders - and they can't afford to miss a word
12. As I was walking a ribbon of highway - I saw above me an endless sky - I saw below me a golden valley - This land was made for you and me
13. Oh I've been smiling lately - dreaming about the world as one - and I believe it could be - some day it's going to come
14. You see, war is not the answer - for only love can conquer hate - you know we've got to find a way - to bring some lovin' here today
15. Tell us commander, what do you think? - 'Cos we know that you love all that power - Is it on then, are we on the brink? We wish you'd all throw in the towel
16. How many times must a man look up - before he can see the sky? - Yes 'n' how many ears must one man have - before he can hear people cry?
17. In the locust wind comes a rattle and hum - Jacob wrestled the angel - and the angel was overcome - you plant a demon seed
18. 99 dreams I have had - in every one a red balloon - It's all over and I'm standing pretty
19. It's just a rumor that was spread around town - a telegram or a picture postcard - within weeks they'll be reopening the shipyards
20. How can you say - no child is left behind? - we're not dumb and we're not blind - they're all sitting in your cells