Maybe it is just an unwarranted anxiety or groundless fear.

也许，这只是杞人忧天或者无根据的恐惧。

youdao

"It is unfortunate that, yet again, we are hearing the same tired, unwarranted and groundless allegations that used to be unjustifiably and futilely repeated by the previous U.S. administration, " Khazaee wrote.

CNN: Rice: U.S. will seek to end any 'illicit' nuclear ambitions by Iran