Bombarded with or by?

[loveisagirlnameddaisy]

Just that really. Is it an either or situation or not?

I guess it depends how active the things are.

Bombarded with questions
Bombarded by journalists

That feels right to me. An analogy would be "cut by/with" - he was cut with a knife by his psychotic neighbour.

Ah yes, that makes sense. Thanks. :)