Flying out of Boston Logan on March 11 was a nightmare. They have the new body scanners and TSA staff don't know how to use them and then they did not have back-up when the one in our line went down. The lines were backed up to the front doors and when we finally made it to put our items on the security line - they were letting other passengers in front of us. After we had been in line for 1hour 20 minutes - with no explanations why. Everyone was upset. Then after the whole body scanner everyone got a body search. 2 lines over however they didn't have the "new scanners" so people were going thru those lines very quickly. The attendants and TSA staff bringing other passengers in front of us would not explain and in some cases ignored questions from passengers seeking answers.