renata rojas, a banker by trade and explorer at heart, said it will be worth every penny. >> ever since i had a job i've been saving to go on "titanic." >> reporter: she's already overwhelmed. >> i will probably cry the entire time. i get emotional. >> reporter: about the "titanic"? you really do? rush says his submersible is one of the safest forms of transportation in the world. you believe the cyclops two is pretty much invulnerable. >> by the time we finish testing it, i believe it is pretty much invulnerable. >> reporter: and that's pretty much what they said about the "titanic." >> that's right. and i will go on all the first dives, put my money where my mouth is. >> reporter: chip reid, cbs news, new york. >> mason: that's quite a ticket. a major airline bumps up compensation for bumping a passenger. passenger. bumps up compensation for bumping a passenger. weeks taking probiotics! days and nights of laxatives, only to have my symptoms return. (vo) if you've had enough, tell your doctor what you've tried and how long you've been at it. linzess works differently from laxatives. li

. >> i have a picture of her in renata, mississippi, walking right along behind dr.took kindergarten children and threw them through plate glass windows to keep them from getting close to the school. >> i'm not afraid. i'm going back. if they have to kill me, i'm going. >> i had one reporter actually tell me, look, i know you don't like the press getting in your way. but i got to keep a camera on martin luther king. because if he gets killed, and i don't get a picture of it, i'll lose my job. >> there were people out there looking to kill. >> we will build a brotherhood under guarded by justice and overarched by love! >> that kind of courage changed how i viewed human beings. they can do acts of exemplary humanity that has a resonance and rippled through society and people are inspired by. that's dr. king. >> this is why i can still sing "we shall overcome." it bends towards justice. >> he used to say the movement was a collection of people, and he included himself, who was certifiably insane. he said nobody in their right mind would think they were going to take on