. >> the next question is from sears city. -- sioux city. what should u.s. policy towards iran be, and should regime change become a part of a policy? >> this is an unbelievably difficult question, because this is not the same as when iraq started developing their nuclear programs back in the 1980's, when israel took out their program that then. iran has learned from that. they are spreading around the country. it is not as easy for israel to take out the nuclear capabilities. the world simply cannot afford to have iran have a nuclear weapon. cannot afford it. there are no options. that is the bottom line. the president has said that. i agree with the statements he has made all with that. countries like iran, they only understand strength. remember libya? again, and when ronald reagan was president -- i am a veterinarian, so i can use this. moammar gaddafi. did not mean to offend anyone, but the veterinarian comes out on a once in awhile, and that really is. they understand strength, and you cannot pass a by people like mahmoud ahmadinejad. you cannot, and t