Are CAPTCHAs Getting More Difficult?

CAPTCHAs are a challenge-response test used to help decipher human responses from that of a computer in order to prevent automated software from performing actions which degrade the quality of service.  Recently I’ve noticed that CAPTCHAs are getting increasingly difficult.  Is this a sign of tech evolving faster than the human mind?

Related

I’ve being covering the holiday outlook here: Holiday 2012: Part

The role of social in reading is becoming more pronounced.

Amazon is testing a $7.99 monthly price point for Prime