Which idiom means to remain cheerful and hopeful in a difficult situation?

Which type of TV screen shares its name with the straw-colored fluid part of the blood? Which crop, a type of sorghum, has stiff, bristly flower clusters used for sweeping? A unique mobile library in Kenya is carried from place to place by which "ships of the desert"? Kerrelyn Sparks's vampire romance series is punningly titled "Love at" what? Yeats's poem "Under Ben Bulben" ends: "Cast a cold eye on life, on death." Which three words follow? What is the name for an engineered waste site where trash is buried in layers and covered with soil each day, often cal… Born in Prague in 1937, who became the first woman U.S. secretary of state in 1997? In which 1998 film does Bruce Willis, recruited to save the world from an asteroid, demand that his crew never pay taxe…