The Lost Symbol : Dan Brown's new book

I would say that Dan Brown's new book is a disappointment. I expected more from him. Its not that this book is not thrilling but the problem lies in its plot and motivation of characters for things they do in it.
Plot is really very weak and is the biggest weakness of this book. There are lot of things new and astounding but it gets bored when again and again he says Ancient Mysteries and enlightened minds the powerful knowledge etc.
He has also made some guesses about why have masonic people have chosen USA as their country where they can hide their symbols. Its really difficult for a person to guess which country will rule the world after 200 years so it looks bit silly when he says masonic forefathers chose America as their next destination.
There are some good things about how science and religion want to achieve same goal but have different paths. Philosophical thinking also is good but I did not read that book for philosophy.
This book is no where near to exceptional 'Da Vinci Code' and 'Angels and Demons' both books by Dan Brown. He seems to have lost the plot in The Lost Symbol. Too much symbology is really uncalled for abd really people look like encyclopedias.
It really amazes me how he has depicted Director of CIA OS acts, he depicted character CIA director in book Digital Fortress and it was very good, it had qualities like being calm under immense pressure. But this director does not seem to like that at all, she gets angry every now and then.
Book is one time read but will surely disappoint Dan Brown fans.