Mission name: Gather the reports
Mission rank: D
Objective: Collect reports from the jounins guarding the gates.
Location: Kirigakure
Reward: 150 Ryo
Mission description[Repeatable]:
You have been tasked to visit each of the entrances to the city and collect a report from the jounins on duty. Be careful not to lose or damage the reports when delivering them to the Mizukage.
Mission Details: These are also high-ranking reports that are not intended for D-rank genins so you are expected not to read them.

The mention of reports being meant for high ranking shinobi and warning the taker not to read them implies that the village would be so careless. The village would not put anything of real consequence in the hands of genin.