It is true - your bank can do nothing
You wired the money, then realized you'd been duped. It wasn't an unauthorized wire transfer. You authorized it. Things like and wire-transfers are designed so you cannot take it back.
Wire-transfers are not credit cards. Credit cards offer fraud protection to encourage use. Most of the time when you dispute a charge, the credit card company eats it because you're paying them 18% APR.
Never send money wire-transfer, Western-Union, or any other service that doesn't have a way to pull the money back.
The reason wire-transfers (and several other things) cannot be taken back is because the bank needs to act as a trusted 3rd party. Imagine if you sold a house and the buyer decided to "dispute" the payment.
EDIT - in response to comments.
Among other things in the links, this is important
the wire transfer is $50,000 or above
I'm sorry to keep giving you bad news, but your money is gone. These sites mention Western Union and Money Gram, both services used frequently by scammers.
Even if they could reverse the wire transfer, the money is likely long gone from the account. Who's gonna make up the difference?
Your Bank - Why would they, they were acting on your orders.
Receiving Bank - They got a legitimate wire transfer from your bank. Why would they take money from their customers to issue a refund on a legitimate transaction.
Scammer - Good luck tracking him down.
It hurts to hear, but you've just learned a $10,000 lesson. Scammers know how to take the money and run - it's their job. It sucks, but everyone on this site has lent money to a friend, or put it into an investment or business venture that went belly up. Sometimes you lose money for a dumb reason - that's life.
The best thing you can do is stop obsessing over it and move on. All the research and worry in the world won't bring it back.
Edit 2 - the bank employees did what you asked
From comments, it sounds like you're blaming the bank for your own bad decision. The bank employees are trying to be nice to you. The reason they don't seem interested is because they know what I (and everyone who upvoted) know - the money is gone.
They are not incompetent, they don't want to waste much time on a fruitless chase. Please be nice to them and work with them and law enforcement. That's the only way you'll see a cent returned to you (but don't count on it).
No amount of talking about SWIFT or anything else that Google tells you will change a thing
No one dressed up and impersonated you at the bank - you walked in and sent the money of your own free will. A few people got lucky and pulled the cash back before the account is emptied, you weren't one of them.
NOTE: The reason Google is giving you any hope at all is that wire transfers (especially international ones) aren't instantaneous. Usually, you have to wire it to a large/national bank, with instructions to wire it to the actual bank. Most of the time a human is involved and will only do this once or twice a day. Scammers know which national banks are automated and how to get their money fast.