Do you believe TSA screenings are effective?

No, Their radar scans, pat downs, perp walks, 3 ounce containers and ban on toe nail clippers are for show at best. Have you asked yourself "Do the airline, airport, retail, and foodservice employees go through the same level of security? The answer is a resounding NO. The real purpose of the TSA was and is as a "jobs program" i.e. to employ people who will join unions and vote Democrat. Now the Aviation related security efforts that are working are those being done by the airlines themselves and include: hardening aircraft doors, hardening luggage compartments, and the new and improved bomb resistant luggage containers.

NO.
Look the TSA is there to make people feel good. If I have to go through X, that means everyone else has to go through X. If a Bad guy, wanted to make a plane go bye bye, how easy would it be to bypass the TSA? How many sharp and dangerous objects are beyond the TSA check point?
We continue to attempt to give up Freedom for security, and we are getting neither. NO the TSA isn't effective, and it NEVER EVER will be no matter how much freedom we give up.

"Security" in all forms isn't "effective." It's a delaying tactic. It doesn't PREVENT. It DELAYS.

Now, this all goes back to 1973 and the purpose of Airport Screenings though.

http://flyingwithfish.boardingarea.com/2010/11/20/how-the-tsa-legally-circumvents-the-fourth-amendment/

And specifically the Court Cases and Laws which allow the TSA to exist. More specifically is the verbiage included in the case law. “noting that airport screenings are considered to be ADMINISTRATIVE searches because they are conducted as part of a general regulatory scheme, where the essential ADMINISTRATIVE purpose is to prevent the carrying of weapons or explosives aboard aircraft.” (Emphasis added).

Now, as all security is measured in Time, not in Effectiveness. How long will it take someone to Breach your security measures. We run into an issue. We know someone will make it through. It becomes a case of what is an acceptable "error rate." This is counter to the concept of Terrorism, which the Agency is designed to protect against, which relies on 100% Vigilance.

You can't have 100% safe air travel, not when you have "bad players" actively trying to circumvent it. Especially not when the vast majority of it is safe, and it becomes a "check in the box" and becomes an "Administrative hassle" on everyone else involved, and the government eventually realizes they can monetize or prey on the citizenry. It breeds an environment where ineffectiveness is better.