So that's where I know Philip from. I knew he looked familiar. (Brothers and Sisters)
Actually, when the show started, Philip had been visiting with Martha for some time getting information. THey didn't say exactly how long that had been going on. I suspect she had had feelings for him for awhile from the way she reacted to him when he made the first move on her.
Elizabeth is a complicated character. I like her at times, but get frustrated with her easily. I get more frustrated with Philip, because he tends to forget to be observant of his surroundings. What kind of spy does that?
I wonder what kind of plan the couple has in mind for the their kids if something goes wrong. With no family or real friends to take the kids, what would happen if they were caught or killed?