Once more the brothers don't see eye-to-eye.
I'm a little bit surprised by Clark's reaction to this line:
"Will millions suffer so you can avert one tragedy?"
But then, Clark wouldn't be willing to sacrifice one for the sake of anyone else... even if it is the many.
Did Michel fly by plane because of what's happening in Metropolis or because he really doesn't like flying without a plane?
Sounds like Suzanne is softening towards him and that Clark recognizes this more than Michel.
How will these two rectify their differences of opinion? They may think differently but they're both still stubborn mules.