science-fiction thrillers set in the present day

I'm looking for writers who specialize in science-fiction thrillers set 
in the here and now. I'm thinking of folks like Douglas Preston and 
Lincoln Child. Greg Bear and Nancy Kress have both dabbled in this 
category. A lot of Dean Koontz fits too, including Strangers, the book he 
credits with breaking him out of the SF genre.

Considering the number of TV shows and movies that work this area, I'm 
surprised it's not better represented in print.

Who am I missing?
--
David Hartlage