Is it ever morally acceptable to lie?

Link to video: https://youtu.be/8bIys6JoEDw
Complete the assigned reading:
• Immanuel Kant, "The Categorical Imperative" - Chapter 12 in Cahn, Exploring Ethics 6th ed (pgs 86-95) – see pages below
• Onora O'Neill, "A Simplified Account of Kant's Ethics" - Chapter 13 in Cahn, Exploring Ethics 6th ed (pgs 96-99) – see pages below

Assignment:
• In your view, is it ever morally acceptable to lie? Why or why not? What does Kant say? Cite and explain relevant passage(s) to support your answer. If you believe it IS acceptable to lie, be sure to explain "why" and provide a concrete example to illustrate.