"The Trump administration is considering narrowly defining gender as a biological, immutable condition determined by genitalia at birth, the most drastic move yet in a governmentwide effort to roll back recognition and protections of transgender people under federal civil rights law," the N.Y. Times' Erica Green, Katie Benner and Robert Pear report.

What's happening: "[T]he Department of Health and Human Services is spearheading an effort to establish a legal definition of sex under Title IX, the federal civil rights law that bans gender discrimination in education programs that receive government financial assistance."

"The department argued in [a] memo that key government agencies needed to adopt an explicit and uniform definition of gender as determined 'on a biological basis that is clear, grounded in science, objective and administrable.'"

argued in [a] memo that key government agencies needed to adopt an explicit and uniform definition of gender as determined 'on a biological basis that is clear, grounded in science, objective and administrable.'" From the memo: "Sex means a person’s status as male or female based on immutable biological traits identifiable by or before birth ... The sex listed on a person’s birth certificate, as originally issued, shall constitute definitive proof of a person’s sex unless rebutted by reliable genetic evidence."

"Sex means a person’s status as male or female based on immutable biological traits identifiable by or before birth ... The sex listed on a person’s birth certificate, as originally issued, shall constitute definitive proof of a person’s sex unless rebutted by reliable genetic evidence." Why it matters: "The new definition would essentially eradicate federal recognition of the estimated 1.4 million Americans who have opted to recognize themselves ... as a gender other than the one they were born into."

Be smart: The move would most directly impact discrimination cases in terms of education, but would likely have a much wider effect on the civil rights and public acceptance of transgender people.

Opponents of transgender rights would likely use a redefined Title IX definition as an impetus to roll back all manner of civil rights.

would likely use a redefined Title IX definition as an impetus to roll back The Times' unusually striking headline recognizes the broad impact this could have: "Trump Administration Eyes Defining Transgender Out of Existence."

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