Law enforcement can and does lie all the time. For example, if you ask an undercover police officer if he's a police officer, he can lie and say no. Perfectly fine. Police officers can also lie to you when they're interrogating you, telling you they have video of you committing the crime they're accusing you of even if they don't. Perfectly fine. That's a different kind of lie than the one your video illustrated, which--as I already said--involves police officers framing a drunk person for an accident that wasn't her fault. That's not comparable to a prostitution or terrorism sting, which involve inviting people who are perfectly willing to commit crimes to try and commit them.
A person who wants to claim entrapment must prove that they they wouldn't have committed the crime except for the invitation of law enforcement. You cannot maintain this burden when you offer to pay money for sex, ask to buy drugs, and agree to buy bomb components from someone offering them. The fact that it was a police officer is totally irrelevant because your actions demonstrated your willingness to commit the crimes. My four hour example was only meant to illustrate that police officers had to do something extraordinary to actually constitute entrapment--they had to get you to do something you otherwise wouldn't have done. When you got in the car and asked "How much?" how easy do you think that is to do? Likewise, if someone says they can get bomb components and you inquire about purchasing them for terrorist purposes, how easy do you think it is to prove entrapment?
Whatever the answer is, it hasn't changed a lick because of 9/11. Entrapment is just as it always was, enjoying its mythical existence with the foolish.
Edit: All you need to do is look at the Supreme Court cases. One of the high profile ones that involved someone winning on entrapment had postal inspectors sending brochures from fictional organizations promoting child pornography and arguing that its purchase was a civil liberty under attack by a vicious government. This is not nearly the same as an undercover police officer saying, "Yeah, it's $100 for the blowjob."