Killing her would be bad. I'd feel so bad for Jack and I don't know how he'd go on. But they don't need to keep including her. Her reapperance in season 5 could have been so much more...

Kim: I HATE YOU!

Jack: I was doing what was best for you.

Kim: Who gives a ****?

Jack: You could have been killed.

Kim: So?

CTU Agent: Nerve Gas!!!!

(Chaos ensues. Later, after Jack saves the day...)

Kim: I hate you.

Jack: I just saved your life...

Kim: Screw off. I'm going to go get it on with my boyfriend.

Jack: He's older than me!!

Kim: So? You don't care about me!

Jack: What do you mean?

Kim: You never told me about being alive!

Jack: It was to save you!

Kim: Who cares. I hate you. Goodbye.

Kim's plot's are always like that. Stupid and ranting....