These fish are very bad for the environment however those articles in the first post are total fluff and completely exaggerate their danger to humans. They are bad because they kill eat and out compete a lot of native fish and other aquatic species. There is an interesting perspective in this video about how they have affected rivers in the Washington, DC area since they arrived a few years ago. Note that it is in HD so its a very large download.
bah...i saw that documentary on national geographic about snakeheads and they make it sound so bad. upon reading about it more on the internet, i realized a lot of people in US own them and they even trade them on-line. in fact, they even sell snakeheads in the asian markets around here but of course they are dead. it would be illegal if they were alive, at least in CA. my dad, who's tried snakeheads says they're not even that good.
and they don't "eat" people, they bite them, yes but they don't eat people...
Panic after 'Franken-fish' that is deadlier than a piranha is caught in Britain
With its razor- sharp teeth, the fish known as the giant snakehead terrorises the warm waters of south-east Asia.
Which is why an angler was particularly startled to hook a 2ft specimen from a river in Lincolnshire.
Andrew Alder caught the snakehead using a sprat for bait while fishing for pike in the River Witham near North Hykeham.
He took photographs of his catch and handed them over to experts who confirmed it was the deadly predator.
So devastating is the damage a giant snakehead can wreak on other fish, frogs and their natural habitat that it is on a list of species which cannot be imported into the UK.
Mr Alder, from Lincoln, said his catch had a mouth full of razor-sharp teeth and looked absolutely terrifying.
It is thought that the fish was smuggled in for a private aquarium and then illegally released into the wild when it became too much of a nuisance.
The presence of even one of the species in British waters is a nightmare for environmentalists and conservationists.
Giant snakeheads caused chaos to indigenous fish and the environment when they were found living in rivers and lakes in the U.S. in 2002.
Snipers with high-powered rifles even set up watch to shoot the fish as they crawled ashore and entire lakes were poisoned to get rid of them.
A spokesman for the Environment Agency said: "The giant snakehead is not native to the UK and the coolness of our waters mean they are unlikely to survive for any length of time in this country.
"However, they could still pose a danger to habitat and other fish and we would like to remind people that the dumping of fish in waters is illegal in this country and should not be carried out under any circumstances.
"Not only that, but dumping of non-native fish can cause severe damage to indigenous species and their natural environment."
Ben Weir, of the Anglers Mail, said: "In all my time of working within fishing I have never heard so many concerned voices."
Luckily Mr Alder realised the potential damage the snakehead could cause and did not throw it back. It later died and he disposed of it.
The bit about the snipers and crawling onto land are what get me.
One man with courage makes a majority.