The Netflix show House of Cards is replete with symbolism throughout. While some symbolic events are more obvious (Claire observing an older woman similar to a colleague she fired struggling at a cafe job comes to mind), others are less so.
Near the end of the third episode ("Chapter 3"), Claire notices some young people making out in the cemetery. She pauses and smiles, but we get no further reaction. In a show laden with symbolism, and an episode reaching it's conclusion, this event surely means something.
What do the young people making out in the cemetery symbolize?