> any updates published by any AS may arbitrarily re-route/disrupt traffic Fortunately, most ISPs are doing strict filtering on announcements on customer ASes.

> any updates published by any AS may arbitrarily re-route/disrupt traffic Fortunately, most ISPs are doing strict filtering on announcements on customer ASes. It's when mid-to-large ISPs fuck up (or neglect the filtering part) that it becomes a problem.