[JumpCrisscross]

> like they did with chinese 'international offices'

The NYPD's international offices do not have policing powers. They can't arrest people. They can't search or seize suspects. They're there with the full knowledge and coöperation of their hosts.

The Chinese police departments were exercising police powers on foreign soil without the host countries' permission. Night and day.

[Eisenstein]

Why do you write 'cooperation' with an umlaut?

[iamawacko]

Probably a diaeresis, a diacritic which indicates that two vowels aren't to be read as a digraph or diphthong. It's fancy and pretentious, and frequently seen in New Yorker articles.

[erik_seaberg]

I went through a phase of this because it made sense and I didn’t realize that it wasn’t standard English.

[int_19h]

It is standard English, just somewhat antiquated at this point. Still, you see it quite a bit with "naïve".

[JumpCrisscross]

> Why do you write 'cooperation' with an umlaut?

I grew up speaking French, English and a variant of German and have trouble not reading the double-o as a long vowel. After that autocorrect picked up on it and it doesn't bother me enough to change it.

[kevin_thibedeau]

In English words it's a diaeresis.