美国联邦航空管理局因通信中断导致全美航班停飞，欧洲同时面临炸弹威胁

本文如何被排名

Signal score

16 / 100

Composite score across the factors below. Higher = stronger signal that this story matters right now.

Newsworthiness bucket

Research

影响国家交通系统的重大基础设施中断。[lever_c_从significant降级：ic=1 ai=0.4]

Source corroboration

Single-source cluster

Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.

Topics

infra, policy

Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.

AI-industry relevance

Standard

On-topic for AI-industry coverage; kept in the public index.

Story freshness

Breaking (< 6h)

Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

完整方法见我们的编辑标准。