<<They should rebuild it bigger and better than before! It's nearly 30 years later. We have the technology!>>
It's not a question of if we can, it's a question of why the hell would we want to. A study on the WTC found that a worker in the WTC over his career would have spent 3years in the elevators. America ended it's facination with being the tallest building in the world with the sears tower, we found what everyone else found out. Big building suck, it takse to long to get up high, it takes to long to get back down and the facilities needed to handle that many people make them mini-cities.
For the cost of the twintowers we could build 5+ buildings that would hold more office space. And really, it's way to early to say if they even will rebuild or how big.