5. What is the metaphor that Katniss uses to describe the cameras taking pictures of her and Peeta as they wait at the train’s door? What does this metaphor hint about the public’s interest in them?

From the text:

I’ve been right not to cry. The station is swarming with reporters with their insectlike cameras trained directly on my face. But I’ve had a lot of practice at wiping my face clean of emotions and I do this now. I catch a glimpse of myself on the television screen on the wall that’s airing my arrival live and feel gratified that I appear almost bored.

From the text, we can infer there is immemse, public interest in Katniss and Peeta's actions.