The World marked the 15th anniversary of the 9/11 terrorist attacks yesterday.
The debate has raged from that day in 2001, about what actually happened and who was behind it.
The majority of people believe it was Al Queda terrorists who flew the planes into the twin towers, the pentagon and a field in pennsylvania.
But was it really a terrorist attack?
There are many people who think it was an “inside job”
Two of whom spoke to Adrian and Jeremy on Dublin Talks on Monday morning.
One call doesn't even believe that planes actually flew into the towers.
Listen to their 'theories' by clicking play on the link below.
Dublin Talks is back on Tuesday morning from 10am.
