Is it safe ?

A break from blogging, and indeed from serious chess efforts, but I'm back with a question.

Is it safe ?  

No, I'm not switching obsessions to a discussion of "Marathon Man", instead, I'm asking the question in this position.

After 11. Be2, is Nxe4 a safe move ?

Following 11. Be2, is the capture Nxe4 a safe move for Black ?

This arose in a recent club game with me playing Black in a Queen's Gambit Accepted ( no declining the gambit complexity, give me 19th century chess simplicity ! ).

All opinions welcomed...