From the Wikipedia page for elliptic curve crypto:

"In 2013, the New York Times revealed that Dual Elliptic Curve Deterministic Random Bit Generation (or Dual_EC_DRBG) had been included as a NIST national standard due to the influence of NSA, which had included a deliberate weakness in the algorithm."

What kind of "weakness"? Bitcoin uses elliptic curve, correct? What could this mean for Bitcoin?