30,000 Americans sign a petition calling for Piers Morgan to be deported for his gun control views, meaning the White House must respond.
As President Obama calls for "concrete proposals" to curb gun violence, some shooting enthusiasts have doubts they will work in practice.
A resident of Newtown told ITV News he found six terrified children hiding in his garden after last week's massacre at an elementary school.
Connecticut Governor Dannel Malloy said it is still unknown when the train service between New York and New Haven will be restored following a crash that injured 60 people:
We do not have an estimate yet when service will be restored. Commuters should make alternate plans for travel between Bport & S NorwalkFrom @GovMalloyOffice on Twitter:
Service remains suspended indefinitely between New York and New Haven through Sunday with no estimate on service restoration.From @Amtrak on Twitter:
A commuter train travelling from New York City derailed near the Connecticut town of Fairfield and collided with another.
There were an estimated 700 passengers on board the the two trains that collided in Bridgeport, Connecticut last night, according to a statement from New York's Metropolitan Transportation Authority (MTA).
The statement also said that there are four tracks on the segment on the line where the train derailed, but that two of the lines were out of service due to maintenance work.
The route is one of the busiest commuter lines in the New York area.
A passenger on a commuter train that collided with another train in the US state of Connecticut has described his dramatic escape from the carriage.
Alex Cohen, a Canadian passenger on the westbound train en route to New York, told NBC News: "We came to a sudden halt. We were jerked. There was smoke."
"People were screaming; people were really nervous. We were pretty shaken up. They had to smash a window to get us out," he said.
A commuter train travelling eastbound from New York City derailed near the Connecticut suburb of Fairfield during the evening rush hour on Friday and collided with a westbound commuter train, injuring up to 60 people, at least three critically, officials said.
The collision of the two Metro North trains forced Amtrak to shut down service indefinitely between New York and Boston, the national railroad said.
Three people were critically injured and 60 people were transported to area hospitals, police said.
Connecticut Governor Dannel Malloy told a news conference: "It's pretty devastating damage to a number of cars.
"These cars came into contact (and the impact) ripped open the siding of one of the cars. There is extensive damage in the front and the wheels."
The accident occurred shortly after 6pm local time (10pm GMT), authorities said.
Amtrak indefinitely suspended service from New York's Penn Station to Boston after a Metro-North Railroad train derailed and struck another train near Fairfield, Connecticut, the company said.
There were no reports of fatalities in the accident, which occurred shortly after 6pm EDT, police and transit authorities said.
Some 20 to 25 people were injured on Friday when two trains collided on a commuter line near Fairfield, Connecticut, but there were no reports of fatalities, police and transit authorities said on Friday.
The accident occurred when an eastbound train on the Metro North Railroad derailed and collided with a westbound train near Fairfield, said a Metropolitan Transit Authority spokesman.
Some 20 to 25 people were injured on Friday in a train accident near Fairfield, Connecticut, a Fairfield Police spokesman said.
He said there were no known fatalities and none of the injuries appeared to be life threatening.
President Obama has said there will be "shame" on himself and the American people if pledges to bring in tougher gun safety laws after the Newtown school massacre go unfulfilled.
More than 3,000 gun deaths have occurred in the US since Adam Lanza shot dead 26 children and staff at Sandy Hook Elementary School in Connecticut in December.
More shocking details of the speed of the attack and the arsenal of weapons Lanza owned have been released today.
But, as ITV News Correspondent Geraint Vincent reports from Washington, DC, Mr Obama still faces great difficulty in translating anger at the massacre into legislation aimed at curbing the public's right to bear the most powerful of arms.
Newtown killer Adam Lanza's choice of assault weapons from his store of guns to carry out the December school massacre underlines why tighter controls are needed, Connecticut Governor Dannel Malloy has said.
"We now know that he left the lower capacity magazines at home," Malloy said in a statement after the previously sealed searches of Lanza's car and home were made public.
"This is exactly why we need to ban high capacity magazines and why we need to tighten our assault weapons ban."
The White House has released a four point plan to strengthen gun safety laws.
Titled "President Obama's plan to reduce gun violence and help protect our kids," it reads: