It's not your imagination. 'I am not a robot' CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) tests are become harder to do.  Wall Street Journal reporter Katie Deighton joins Drive Time with Michael Wallace to tell us why.

PHOTO: Cosminxp Cosmin/Getty Images

<p>It's not your imagination. 'I am not a robot' CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) tests are become harder to do.  Wall Street Journal reporter Katie Deighton joins Drive Time with Michael Wallace to tell us why.</p>
<p>PHOTO: Cosminxp Cosmin/Getty Images</p>

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