Question:
Literally, nothing in particular- a flood of blinding daylight was blotting out the view, overexposing it into nothingness.

Does it follow that "It was dusk and visibility was clear to everything around me."?
Answer:
no

Question:
He may be seen leaving the room "he may be searched.

Does it follow that "He left the room."?
Answer:
yes

Question:
He spoke and they all listened.

Does it follow that "When he spoke of the war, they all listened."?
Answer:
it is not possible to tell

Question:
Unemployment is at an all-time low.

Does it follow that "Unemployment is lower than ever before."?
Answer:
yes