"This may be the single most important gun violence preventionmeasure that the government could adopt, " said Nichols, an attorney with the Law Center to Prevent Gun Violence.
The Tennessee Valley Authority said it was taking the unusual flood-prevention measure of spilling 1.5 million gallons of water per second through the Kentucky Dam near Paducah from the Tennessee River into the Ohio River.
In his first annual report on the Terrorism Prevention and Investigation Measure (TPim) regime - brought in to replace control orders - David Anderson said the government needed a higher standard of proof before they applied to the courts for an order.
The first is known as data execution prevention, or DEP, a measure designed to prevent hackers from hijacking programs by sneaking their own commands into what is meant to be harmless content like pictures or text.