Supreme Court warns Congress threats are rising and the court needs more security

Justice Elena Kagan warned Congress on Tuesday that police expect threats against Supreme Court justices to rise nearly 40% this year. Why it matters: As courts play a bigger role in deciding the nation's most contentious policy fights, anger from the losing side is turning into threats that risk undermining the court's independence. By the numbers: The Supreme Court Police Department expects a "very substantial" 38% increase in threats this year, following a 25% increase last year, Kagan told…