Still stuck

This from the Honolulu Advertiser:

"One of the biggest and technologically advanced warships based at Pearl Harbor ran aground in 17 to 22 feet of water half a mile off Honolulu International Airport's reef runway on Thursday."

Numerous attempts to get the ship off the sandy and rocky bottom have been unsuccessful. I was driving into town late Saturday afternoon and looking for it from the elevated stretch of highway near the airport and there it was. So how does something like this happen despite all the advances in navigation in the last 50+ years??