In addition to techno-thrillers, he's also written such nonfiction works as "Submarine" & "Fighter Wing"
While it's mostly "by the numbers" military/espionage techno-
thriller that ..... but the left-wing characters in this book are such ridiculous 
caricatures that the... [DOC] [TLE] The Sum of All Fears by Tom Clancy, Paperback | Barnes & Noble [PAR] May 7, 2002 ... NOOK Books .... Customers Who Bought This Item Also Bought .... Clancy 
evolves from storyteller to novelist in his latest techno-thriller, ... detailed atomic 
bomb assembly directions and nuclear submarine specifications, ... Nonfiction ...