AK -- missed flop hand. Fold turn, fold river, and/or 3-bet flop?

[Grisgra]

I think fold the river. I really don't like the idea of a flop raise, I think there's a chance I'll be 3-bet. But . . . as always, lookin' for opins.

Party Poker 10/20 Hold'em (6 max, 6 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Preflop: "Hero" is CO with A/images/graemlins/club.gif, K/images/graemlins/spade.gif.
<font color="#666666">1 fold</font>, MP calls, <font color="#CC3333">"Hero" raises</font>, <font color="#666666">1 fold</font>, SB calls, BB calls, <font color="#CC3333">MP 3-bets</font>, <font color="#CC3333">"Hero" caps</font>, SB calls, BB calls, MP calls.

Flop: (16 SB) T/images/graemlins/diamond.gif, Q/images/graemlins/club.gif, 4/images/graemlins/spade.gif <font color="#0000FF">(4 players)</font>
SB checks, BB checks, <font color="#CC3333">MP bets</font>, "Hero" calls, SB calls, BB calls.

Turn: (10 BB) 8/images/graemlins/diamond.gif <font color="#0000FF">(4 players)</font>
SB folds, BB checks, <font color="#CC3333">MP bets</font>, "Hero" calls, BB folds.

River: (12 BB) 4/images/graemlins/heart.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">MP bets</font>, "Hero" calls.

Final Pot: 14 BB

[ISF]

Unless I have a specific read or note on MP I think this is a river fold. Sometimes I will raise the flop here, this will usually slow people down that didnt hit, and if he threebets it makes this river fold pretty easy imho. As well you have a reasonable amount of pot equity with the two overs and the gut shot, so a threebet is not a disaster.
It costs you the same when your behind to get threebet on the flop and fold the river as it does to call down, so I would raise the flop if you would otherwise call down unimproved. Against passive opponents, I think a call call fold line is fine.