The Bitcoin blockchain can never have a double spend, but it is possible for a service using the Bitcoin blockchain to see conflicting transactions in a fork for a short period of time. This is why exchanges and payment processors require a few confirmations (additional blocks) before they accept a transaction. It's really that simple. The only real news would be if there was a successful 51% attack against the Bitcoin network which caused a reorg of > 3 blocks, but that is very extremely unlikely.

The craziest thing to me is that numerous other smaller chains like ETC have been successfully 51% attacked on multiple occasions, effectively executing double spends on certain exchanges or services, and yet no one really seemed to care and the prices didn't move much at all IIRC. I guess that's similar to the fact that people still use Steem after it was attacked and they literally just stole the tokens from people they didn't like. People mostly don't care about any of this stuff and just want to make money.