Is the verb 'assemble' sloppily used as 'convene' here:
"Mr. Husseini was speaking at a hastily assembled news conference in the mainly Palestinian Sheikh Jarrah neighborhood of East Jerusalem, after the closing of the media center in the nearby Ambassador Hotel. "
"At a hastily convened news conference on Sunday, the deputy ISAF commander, Lt. Gen. Adrian Bradshaw, read a brief statement that did little to clarify what happened between the ISAF and Afghan National Army, or ANA, soldiers."
Dictionaries suggest "to convene a group of people" and "convene a conference/meeting" are okay. But only "to assemble a group of people" okay, and not "to assemble a conference/meeting".