For more than 15 years, botanist Naomi Fraga has been trying to collect seeds from the rare Death Valley sage, for safekeeping in a vault of native California seeds.
The suits are the most ambitious effort to date that the Trump administration has gone to try to override state laws and set the rules for the fast-growing and increasingly divisive betting industry.
There is public concern about health risks from the chemicals, especially from the Make America Healthy Again movement. The agency's move doesn't in itself guarantee regulation.