I saw some missions with this text:

> Even the infinite vastness of space is not immune to the odd traffic jam. 
    This could be a good opportunity to take advantage of some Civilian ships. 

When I enter there, I do indeed see some civilian ships floating around, but am at a loss as to what to do with them. I'm on friendly terms with the civilians and I'd like it to stay that way. How can I 'take advantage' of them?