I wonder if those stories that started appearing in the media since the Trump ban order are really showing a true change in US border control actions, or are they just a hot topic so both travelers and media are more eager to report on that.
It is likely that those kind of detentions were happening for years, but they didn't got much news coverage.
After all if you don't like Trumps policies you will happily read about related stories as it confirms what you already believe in.
I think it's best to not get carried away just because a few people got detained. It seems a bit too little to call it policy shift for border control officers, at least as long it stays just incidental issue. FUD is always quick to spread and hard to fight against.
Googling for some data yields some results, but those seem to be big immigration numbers, rather than incidental short detentions for random travelers, so it's hard for me to draw any conclusion. Examples: http://cmsny.org/immigration-detention-behind-the-record-num... https://www.ice.gov/removal-statistics/2016
I think it's best to not get carried away just because a few people got detained. It seems a bit too little to call it policy shift for border control officers, at least as long it stays just incidental issue. FUD is always quick to spread and hard to fight against.