dr. francis collins. [cheers and applause] nice to see you again dr. great to be here is. >> stephen: fourth trip back to the show. i love finding out whawr doing at the n.i.h. >> a lot of stuff, man. >> stephen: you are the director of national institutes of health. you led the government effort to map the human genome. >> right. >> stephen: tuesday president obama announced the brain initiative. >> yeah. >> stephen: why would you want to map the human brain? am i right? is this about mind control? >> how did i know you were going to go there? actually it's about this amazing stur, the human brain. >> stephen: i thought it was a nerf football for a second. >> it's not a real brain just to be clear. it is in these three pounds of material the most complicated biological structure in the universe. >> stephen: are they all rainbow flags? >> no, this is just a teaching model. >> stephen: just didn't know if it was a gi marriage thing. good head. this is in many ways the essence of what it means to be human. we're very much determined -- >> stephen: absolu

dr. francis collins, who will now try to map that three pounds of matter in all of our heads.. that is "world news" for a friday night. i'll see you later this evening for "20/20," as we explore anger in america. losing it, caught on tape. for diane sawyer and all of us here at abc news, thank you for watching this week. we'll see you later tonight. good night. >>> the green light that went on today just as government regulators were waving a caution flag. >> another police shooting in oakland. the second in just three days. we'll show how a fake gun triggered it $2 billion over budget. big bucks building going up in san jose. why it's costing so much. >> the champions, another day for history books at at ask t park. we'll take you live to today's giants home opener. abc 7 news at 6:00 starts now. >> it was a refinery fire that rattled the community of rich montd. tonight good and bad news for chevron. operations can resume but it needs big changes. good evening, i'm ama daetz. >> the federal agency says the whole regulatory system needs to be overhauled. we are live tonight w

dr. francis collins next. we will be right back. >> they had a very political marriage, much like john and abigail. she would lobby in the halls of congress. -- she waso all always very careful to say, my husband advocates this and that. but she was doing the pitch. one of her husband's opponents said he hoped that if james were ever elected president, she would take up housekeeping like a normal woman and she said, if james and i are ever married -- elected, i will neither keep house nor make better. politicallye most active and influential first ladies, sarah pulp. we will also look at margaret taylor. first ladies, live monday night at 9:00 eastern. also on c-span radio and cspan.org. >> all of us in the colorado water basin are watershed. we're talking severed between 35 and 40 million people now -- about 35 and 40 million people now. we depend on the colorado river. we need it for everything. , oured it for houses industry, for mining. and most importantly, agriculture. we can't grow anything without .t t

dr. collins, not just for the introduction but for his incredible leadership at n.i.h. those of you who know francis also knows that he's quite a gifted singer and musician. i was asking whether he was going o be willing to sing the introduction and he declined. but his has been extraordinary. and i'm glad i've been promoted to scientist in chief. given my grades in physics, i'm not sure it's deserving. but i -- i hold science in proper esteem so maybe that gives me a little credit. today i've invited some of the smartest people in the country, some of the most imaginative and effective researchers in the country. some very smart people to talk about the challenge that i issued in my state of the union address, to grow our economy, to create new jobs, to reignite a rising, thriving middle-class by in facting in one of our core strength -- by investing in one of our core strengths and that's american innovation. ideas are what power our economy. it's what sets us apart. it's what america has been all about. we've been a nation of dreamers and risk-takers, people who see what nobody else sees sooner t

dr. collins, not just for the introduction but for his incredible leadership at nih. those of you who know francis also know he's quite a gifted singer and musician. i was asking whether he was going to be willing to sing the introduction. and he declined. his leadership has been extraordinary. i'm glad i've been promoted to scientist in chief, given my grades in physics, i'm not sure it's deserving but i hold science in proper esteem. so maybe that gives me a little credit. today i've invited some of the smartest people in the country, some of the most imaginative and effective researchers in the country, some very smart people. to talk about the challenge that i issued in my state of the union address. to grow our economy, to create new jobs, to reignite a rising, thriving middle class by investing in one of our core strengths, and that's american innovation. ideas are what power our economy. it what sets us apart. it what america's been all about. we've been a nation of dreamers and risk takers, people who see what nobody else sees sooner than anybody else sees it. we do innovation better than