And I wanted to find out why those people had risked their own lives.

"And have you ever stopped to wonder why a people would risk death to be free?"

No one knows for sure why these people risk their lives to thrill others.

And what about other people from all over the world risking everything to get here?

For these books, people risk arrest or at least public humiliation.

"The Master let his people risk their lives and didn't help?"

If I wasn't willing to let people risk their lives, then this plan wouldn't work.

A great many people have risked their lives to bring this thing off.

Why else would he and his people have risked their lives?

"The people in this building have been risking their lives there."