The phrase "again concerned with" is correct and usable in written English.
It can be used when discussing a topic or issue that has been previously addressed or is being revisited.
Example: "In this chapter, we are again concerned with the implications of climate change on global economies."
Alternatives: "once more focused on" or "revisiting the issue of".
Mr. Stillman "is again concerned with the youthful malaise of the privileged, and he once again renders his characters' fretfulness in deft, funny and improbably touching ways," Janet Maslin said in The Times in 1998.
With the respect to the latter, Descartes is again concerned with the connection between physical and mental well-being, and in particular the deleterious effects of passions such as sadness, grief, fear and melancholy.
The next season Ross, again concerned with his salary, began negotiating with other players in the NHA to leave their teams and form a new league that would offer higher wages.
A recent Kenyan study also identified anti-MSP3 IgG responses as being strongly associated with protection, but this again concerned a population with distinctly different exposure to malaria compared to our own cohort [35].
By the 1980s French Canadian theatre again became concerned with broader universal issues.
Although beginning in 1959, Red or Dead is again centrally concerned with the 1970s – Thatcher is elected during the final section – and the book's title, while borrowed from the loyal cry of Liverpool supporters towards their red-shirted team, also has associations with socialism.
The moral dilemmas that Scalzi is able to generate from this premise are often quite stunning: once again he is concerned with a warrior class that feels increasingly estranged from the citizenship it is meant to protect.
Again and again Albee's plays are concerned with language: phrases are repeated, meaning something different each time, or meaning nothing at all: at its most extreme this produces a polyphonic experiment like Box and Quotations from Chairman Mao Tse-Tung (1968), but it is often more subtle, more couched in seeming realism.
Again, we are not concerned with conceptual matters concerning beliefs and games in this entry.
Bartholomew sensed that, and, concerned with her again rather than with himself, he was pleased.
(Again, I know: philosophy is concerned with deep and fascinating questions about the nature of being, what it means to be human, the flow of time. All I'll say is that these questions might be fascinating, but attempts to answer them are often impenetrable).
