11.   A pair of dogs, also wearing Samsung vests, took turns touring the debris, sniffing for the scent of a human, alive or dead.

12.   Airlines could hand-check luggage or use dogs to sniff for explosives.

13.   Candidates, their noses pointing skyward, are forever sniffing for the faintest whiff that something may be amiss with an opponent.

14.   Dogs will sniff for bombs.

15.   Every day, Sarajevans made the decision whether or not to go to work, sniffing for danger the way most of us scout for rain.

16.   German shepherds went in to sniff for signs of life.

17.   I even sniffed for signs of electrical overheating.

18.   In front of the Lincoln Memorial, construction workers building the stage and bleachers for the show gingerly avoided police dogs sniffing for explosives.

19.   In the twilight, we watch Jade do her job, nose to the ground, sniffing for truffles.

20.   Indeed, after more than a decade of sniffing around for deals in Europe, Kohlberg Kravis has announced several successful buyouts recently.