One closely related question has also been the subject of much recent discussion.

Tom's hair has been the subject of much discussion over the past year.

"This is an opportunity for weight not to be the subject of discussion."

"This is going to be the subject of further discussion."

That too is now the subject of angry public discussion.

Shall we get back to our original subject of discussion?

It has also been the subject of significant discussion in Europe.

His early life and origins are the subject of much discussion.

They have been the subject of discussion in the past.

It has been the subject of discussion for six or seven years.