Security was definetly tighter than normal. We took a trip to Colorado and security was about normal when we left Detroit. On the return through Vegas, it was much different. A lot more employees were working, and the high security risk line was longer. I was lucky enough to get the high security line. Any liquid or gel based product was thrown out (water, hand lotion, liquid medicines, shampoo, tooth paste etc). They ran my carry-on through the xray machine twice. Afterwards they quickly searched through it. The lady in front of me was given a complete pat down and her carry on was completly searched.
Then boarding the plane, everybody's carry on was given another quick search before boarding. Crazy!