The flights follow U.S. military statements that it had increased surveillance capabilities along the countries’ shared border. Mexico’s defense secretary last week said that U.S. military planes had not entered Mexican airspace, but that he couldn’t rule out they were spying.

Mexico President Claudia Sheinbaum responded to Trump’s order last month that set up the new formal designation by saying Mexico would defend its sovereignty and independence while seeking coordination.

All but two of the passengers injured on a Delta Air Lines jet that crashed upon landing in Toronto have been released, the airport CEO said Tuesday.

SpaceX has found a new parking spot off of the Bahamas for its drone ships that catch boosters from launches from the Space Coast.

There were no fatalities among the 80 people on board Delta Connection Flight 4819. Experts credit the aircraft design and the cabin crew’s response.

A Delta Air Lines jet flipped on its roof while landing Monday at Toronto’s Pearson Airport, but all 80 people on board survived and those hurt had relatively minor injuries, the airport’s chief executive said.

The Pentagon has estimated its southern border operations will cost almost $1 billion in the next eight months and does not yet have an estimate for new operations at Guantanamo, where the government pays contractors over $272,000 per detention bed compared to $57,000 for a bed at a detention facility, according to the letter.

Senators at a Thursday hearing questioned whether using troops for border-related jobs drastically increases costs and cuts into the preparation for them to fight wars. Some senators said the use of military aircraft to deport migrants can cost about $30,000 an hour.

A humpback whale briefly swallowed a kayaker off Chilean Patagonia before quickly releasing him unharmed. The incident, caught on camera, quickly went viral.

In the past two weeks, the Coast Guard has conducted at least seven C-130 Hercules flights that spanned California, Texas and Washington state.