Here's another European tourist detained indefinitely, confirmed by UK officials:

https://bsky.app/profile/jenniferlcroft.bsky.social/post/3ljxjdhfv4s22

Becky Burke was on a 4-month holiday in Mexico, the US and Canada.  She stayed with a host family in Portland, then travelled to the Vancouver border for a stay with another family in Canada.  The Canadians refused entry, claiming doing chores for the host family constituted illegally working.  When they returned her to the US side, ICE arrested her and shipped her to Tacoma, where she's been detained ever since the end of February.

US law specifies that no-one may be detained more than 48 hours in the normal course of events, and are guaranteed legal representation.  Once again, where's the ACLU?

https://www.bbc.com/news/articles/c80y3yx1jdyo for the BBC take on this.  Immigration says they first offer the arrestee the option of returning to their home country; Ms Burke wanted to return to her home country; what's going on?

At this point, do not come to the US unless you have a US passport. You may be detained for any reason, and detention may be indefinite.