Google will defeat its own captchas for you

Step one: write a bot that hits the "play this captcha as audio for me" on a Google Re:captcha; step two: record that as an MP3; step three: feed the MP3 into the Google's Speech2Text API; step four: feed that text back into the Re:captcha.

Automate the process with François-Guillaume Ribreau's Uncaptcha.

(Thanks, Blaine!)