Summary 136-176

  By the 1960s, scientists think Henrietta's cells is becoming super strong. It survives everywhere. Scientists start doing the research of mix Henrietta's cells with others. They want to get answers from mixed cells which are died or or radiation change. Most of cells are contaminated. The mouse cells with Henrietta's cells is the only succeed example. They publish the result and announce that man-animal cells are bred in lab.
During the 1960s, Henrietta's older sons, Lawrence and Sonny are doing well on their own. However, Henrietta's daughter, Deborah is pregnant when she is sixteen year-old; she also is a violent  mother. while her child make a mistake, she beats him hardly. the younger son, Joe is dropped out of school in the seventh grade and then he is in prison because he killed a person. 
Around 1966's, a geneticist talks to Gey that he finds a technical problem in their field. He is working on cell cloning and hybrids, mapping human genes, and using cultures to cure cancer. He also do the research for looking the new genetic markets. He finds there is one thing that in common in his research, glucose-6-phosphate dehydrogenase-A is contained his research. They are almost from of black Americans. Then they relate to Henrietta's case, and they spend more time developing genetic tests Hela cells.
Back to the 2000s, author is waiting two hours for Sonny for get more information about Henrietta. She knows Lawrence is the only child of Henrietta who remember her. Lawrence said some covered things about Hopkins hospital such as test on black people, hide the truth about Henrietta and Henrietta's family know nothing about her. 
In 1970-1973,Gey has a cancer. He wants his cells will like Henrietta's that can help advance science in the process, so he asks his surgeons to take the cells from his pancreas. However, the surgeons doesn't do it because they worried if they cut the cancer, it will kill Gey. After Gey recovered, he finds out other scientists need his help. After a while, Gey died. Before he died, he told Mary it is ok to release Henrietta's real name if someone asked. Finally, people know Henrietta Lack who provide the immortal cells.
Impression:
Scientists are so crazy terrible. They like test on human or doing weird things.
Question:
Why the Henrietta's family do not want talk to other people about Henrietta, and author still  gets information from them.