216 Reported cases of salmonella poisoning in Alamosa, Colo., stemming from unsanitary tap water, which could take months to fix
$3 billion Amount spent by the U.S. Agency for International Development on overseas projects that include water-sanitation programs
24 Rank of the U.S.--behind Malta--in a new report that measures countries by stability and prosperity
193 million The estimated number of guns in America; the report cited the proliferation of small arms in the U.S. as a reason for its low score
521 The total number of species that Bill Clinton added to the endangered-species list during his two...