Susan Cooper: Well, here's to your mom.
Rayna Boyanov: To my mother. And to you.
Susan Cooper: And here's to you. I mean you may never be as wise as an owl but you'll always be a hoot to me! Haha.
Rayna Boyanov: What a stupid fucking retarded toast. You're delightful.
Susan Cooper: As are you.
Susan Cooper: Where'd you get a suit?
Rick Ford: I fucking made it, didn't I?
Rick Ford: You really think you're ready for the field? I once used defibrillators on myself. I put shards of glass in my fuckin' eye. I've jumped from a high-rise building using only a raincoat as a parachute and broke both legs upon landing; I still had to pretend I was in a fucking Cirque du Soleil show! I've swallowed enough microchips and shit them back out again to make a computer. This arm has been ripped off completely and re-attached with *this* fuckin' arm.
Susan Cooper: I don't know that that's possible... I mean medically...
Rick Ford: During the threat of an assassination attempt, I appeared convincingly in front of congress as Barack Obama.
Susan Cooper: In black-face? That's not appropriate.
Rick Ford: I watched the woman I love get tossed from a plane and hit by another plane mid-air. I drove a car off a freeway on top of a train while on fire. Not the car, *I* was on fire.
Susan Cooper: Jesus, you're intense.
Rick Ford: Nothing kills me. I'm immune to 179 different types of poison. I know because I ingested them all at once when I was deep undercover in an underground poison-ingesting crime ring.
Rick Ford: I make a habit out of doing things that people say I can't do: Walk through fire, waterski blindfolded, take up piano at a late age.
Rayna Boyanov: My father used to bring people like you here.
Susan Cooper: Did he also make you dress like a slutty dolphin trainer?
Aldo: One day, lady superspy Susan Cooper, I will fuck you.
Susan Cooper: I look like someone's homophobic aunt.
Bradley Fine: Nice drone work, Coop. I could kiss you!
Susan Cooper: Oh, haha, well I would accept that with an open mouth.
Answer: It's never fully explained in the movie, but it seems more likely that Rayna simply had a lot of enemies and people we're trying to kill her for various motives, but not to steal the nuke. For example, the guy who tried to poison her seems to do it out of spite for Rayna. The steward on the plane seems more intent on kidnapping Rayna to get what she's selling (although the pilot before dying says "Stan and I already sold it...", so he may not be after the bomb). Karen Walker, who was a double agent who sold Rayna the CIA names, is more likely trying to kill Susan to avoid being found out and not Rayna. Although if Karen was trying to kill Rayna, she may have already discovered the bomb's location, through various means.
Bishop73
Right, when in the basement, to make Susan believe him, Fine asks her "Did (or didn't) Karen try to kill you?" And Susan realises he had sniped Karen and her driver to save her from being killed by Karen.