US Rep. says 3 bomb-sniffing dogs at Philadelphia airport failed tests, demands replacements

[link=http://www.latimes.com/news/nationworld/nation/wire/sns-ap-us-bomb-sniffing-dogs,0,2512626.story]http://www.latimes.com/news/nationworld/nation/wire/sns-ap-us-bomb-sniffing-dogs,0,2512626.story[/link]