Stupid it is not religion. Hindus have been most scientific in the last 10000 yrs with most of the sciences which were developed as an integral part of the religion . Right from mathamatics , astronomy and to Kama Sutra , every thing has come out of the Hindu thought. The so called scientific thought you are is saying is the western thought which is not more then 200 yrs. What sort of questioning do you want. Ram Setu has been man made and it has been existing from the last 7000 yrs. This has been proved by Indian Geologists . Now dont ask whether the Geologist is a Hindu or a semetic. It is because of Ram Setu that , kerala was not effected by the tsunami . Moreover it will be an envoirnamental disaster by dredging the whole area. Precious corals and sea life will be destroyed. Corals take about 5000 yrs to fully develop. We dont have the right to destroy something in nature which takes such along time. Biggest disadvantage will be eroding of sea coast in the years that follow after dredging.