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welcome to tech crunch daily news a round up of the top tech news of the day.

Amazon unveils a new biometric ID technology.

The Biden campaign takes aim at Facebook

and IRobot's co-founder joins a robotic gardening startup. This is your daily crunch. The big story is

Amazon is letting you pay with your palm. The company announced a new biometric device for

Amazon Go stores called Amazon One.

The first time you use it, you insert your credit card and scan your palm.

After that, you can just hold your palm over the device when entering the store and Amazon can automatically charge you for the items you purchase.

If you're worried about privacy and security, Amazon said the images are encrypted and stored securely in the cloud and it also argues that palms are more

private than other forms of biometric identification since you can't determine

someone's identity just by looking at their palm. The technology is being tested in two Seattle area

Amazon ghost stores. The company suggested that the technology could

eventually be used by third parties, for example at stadiums and office buildings.

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