NASA says to pray! Large asteroid heading to Earth?

Today Reuters one of the popular news websites had posted a news regarding the statement given by NASA chief Charles Bolden who said to pray as an advice to do when a large asteroid is heading towards New York city.Recently their was a asteroid which exploded in Russia which was 17 meters in diameter and caused lot of damage. In his speech Bolden had said "From the information we have, we don't know of an asteroid that will threaten the population of the United States, But if it's coming in three weeks, pray." What does this statement means NASA always have things hidden or they won't say exact information of whats happening. Did Bolden slip his tongue over the asteroid which is going to hit our planet earth in a couple of weeks? Just read the following news which was posted in Yahoo news.

An asteroid estimated to be have been about 55 feet (17 meters) in diameter exploded on February 15 over Chelyabinsk, Russia, generating shock waves that shattered windows and damaged buildings. More than 1,500 people were injured.

Later that day, a larger, unrelated asteroid discovered last year passed about 17,200 miles (27,681 km) from Earth, closer than the network of television and weather satellites that ring the planet.

The events "serve as evidence that we live in an active solar system with potentially hazardous objects passing through our neighborhood with surprising frequency," said Representative Eddie Bernice Johnson, a Texas Democrat.

"We were fortunate that the events of last month were simply an interesting coincidence rather than a catastrophe," said Committee Chairman Lamar Smith, a Texas Republican, who called the hearing to learn what is being done and how much money is needed to better protect the planet.
NASA has found and is tracking about 95 percent of the largest objects flying near Earth, those that are .62 miles (1 km) or larger in diameter.
"An asteroid of that size, a kilometer or bigger, could plausibly end civilization," White House science advisor John Holdren told legislators at the same hearing.
But only about 10 percent of an estimated 10,000 potential "city-killer" asteroids, those with a diameter of about 165 feet (50 meters) have been found, Holdren added.
On average, objects of that size are estimated to hit Earth about once every 1,000 years.
"From the information we have, we don't know of an asteroid that will threaten the population of the United States," Bolden said. "But if it's coming in three weeks, pray."
In addition to stepping up its monitoring efforts and building international partnerships, NASA is looking at developing technologies to divert an object that may be on a collision course with Earth.

"The odds of a near-Earth object strike causing massive casualties and destruction of infrastructure are very small, but the potential consequences of such an event are so large it makes sense to takes the risk seriously," Holdren said.

About 66 million years ago, an object 6 miles (10 km) in diameter is believed to have smashed into what is now the Yucatan Peninsula in Mexico, leading to the demise of the dinosaurs, as well as most plant and animal life on Earth.

The asteroid that exploded over Russia last month was the largest object to hit Earth's atmosphere since the 1908 Tunguska event when an asteroid or comet exploded over Siberia, leveling 80 million trees over more than 830 square miles (2,150 sq km). (Editing by Kevin Gray and Paul Simao)

There will be great earthquakes, and in various places famines and pestilences. And there will be terrors and great signs from heaven.- Luke 21:11

And there will be signs in sun and moon and stars, and on the earth distress of nations in perplexity because of the roaring of the sea and the waves,- Luke 21:25