Senator, you should know better!  We should have gotten *those* planes long ago... 

...ohhhhh.  

We should have gotten planes *for them* long ago.  

English.

I love cats.  -- Yes.

I love them. -- Yes.

I love them cats. -- NO.

I love those cats.  -- Yes.

I love those. -- Maybe?  Now we're getting into rules versus experience and "feel", always a weak spot with me.

    Here is a roomful of cats.  I love those black ones over there.  Do you like these white ones?  Yes, but I prefer those.