Final answer:
The author includes modern-day search missions in the selection to connect the past with the present and emphasize the challenges of modern travel.
Step-by-step explanation:
The author includes modern-day search missions in the selection to:
- Connect the past with the present
- Emphasize the challenges of modern travel
By including modern-day search missions, the author is highlighting the relevance of historical issues in today's world and showing how earlier knowledge applies to our world. It helps readers understand the connections between the material in the chapter and the present.