New York at high risk of alien invasions

... vulnerable to being invaded by species stowed away inside the bowels of cargo ships. San Francisco Bay, New York, Los Angeles, Hong Kong and Durban in South Africa are on the list, which could help focus counter-measures. Empty ships routinely take ...

http://www.newscientist.com/article/dn23495-new-york-at-high-risk-of-alien-invasions.html?cmpid=RSS%7CNSNS%7C2012-GLOBAL%7Cenvironment