The Americans - Season 1 Episodes 1-6

Ep 1 very good pilot
Ep 2 vg
Ep 3 vg again, now we are getting to know the 2 Russian spys, the woman is loyal to Russia, a diehard.
The man not so much, but he loves the woman.
I figured they would kill the wife of their friend, but then I thought maybe not, but they did, and it should not have been necessary to do that.
The FBI guy is smart, and they should move?