Maggie O’Farrell has survived some terrifying episodes. She’s had a machete pressed to her throat during a robbery, once contracted amoebic dysentery while traveling, and nearly bled out while giving birth. Her new memoir ‘I Am, I Am, I Am,’ details 17 near-death experiences, and what she’s learned from them. Also, critic John Powers reviews the thriller novel ‘This is What Happened,’ and the German TV series ‘Babylon Berlin’ on Netflix.