On a hot July day, 31-year-old Tierney Temple-Fairchild, twenty weeks pregnant, and her husband Greg went to the hospital for a routine ultrasound and left devastated: their much longed for first baby not only had a serious heart defect but there was also a sixty percent chance that their child had Down syndrome.  While they waited for the results of the amniocentesis – a screening test used to detect genetic abnormalities -- Tierney and Greg immersed themselves in literature about Down syndrome and asked doctors, counselors, and other parents about what they might be facing: Could the heart defect be fixed?  How mentally retarded would the baby be?  If the baby was severely retarded could they put the baby up for adoption?  Of course none of the experts could answer the most important agonizing question of all:  Should Tierney and Greg have the baby or terminate the pregnancy?  In Choosing Naia, reporter Mitchell Zuckoff spent hundreds of hours interviewing Tierney, Greg, and their families and shares the emotional journey of two likable people struggling with a choice they never thought they would have to make.