Dr. Heidi Overton, a top White House aide, has been picked to lead the Food and Drug Administration, President Donald Trump announced Wednesday.
Alternatives could address the oil shortage but risks abound, some experts said.
It was not immediately clear how long the construction pause would last.
The Justice Department finalized a rule Monday that will pave the way for people who've been barred from owning firearms because of criminal convictions to apply to have their gun rights reinstated.
The economy is driving young Americans' enlistments, according to Pentagon data.
The Supreme Court has again rejected President Donald Trump's attempt to overturn a $5 million jury verdict in favor of writer E. Jean Carroll.