Dogs sniff out key anti-terror role at London Olympics

As Britain gears up for the estimated one million visitors expected to descend on London for the Olympics, bomb-sniffing teams are preparing to deal with the threats that come with the big crowds.

Source: http://pheedo.msnbc.msn.com/click.phdo?i=0cba133788105a2cf48ad21bd4f0ae8a

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