2012 BT23 is an Apollo class near earth object and potentially hazardous asteroid discovered on January 20, 2012
[link to ssd.jpl.nasa.gov]

According to NASA's Close Approach Table
[link to ssd.jpl.nasa.gov]

1) On March 8th, 1987 this object had it's 1st close approach to Earth

NOTE: On March 6th, 1987 two big quakes in Ecuador --
The 1987 Ecuador earthquakes occurred at on March 6, 1987 with magnitudes of 6.1 and 6.9 on the surface wave magnitude scale, respectively... The earthquakes caused an estimated 1,000 deaths and US$1 billion in damage.
[link to en.wikipedia.org]

2) On July 16th, 1998 this object had it's 2nd close approach to Earth

NOTE: On July 17th, 1998 a big quake and tsunami hit Papua New Guinea --
The 1998 Papua New Guinea earthquake was a magnitude 7.0 earthquake that took place in the early evening of Friday, 17 July 1998. The earthquake caused a large undersea landslide, which in turn caused a tsunami that hit the coast, killing more than 2200 people.
[link to en.wikipedia.org]

3) On March 20th, 2012 this object will have it's 3rd close approach to Earth

NOTE: On March 15th, 2012 NASA will launch 5 rockets in about five minutes
to "study the high-altitude jet stream"
Thread: NASA five-rocket mission launch - discussion

Soo... Are they covering up a "save the planet" rocket launch to destroy a hazardous asteroid before it closes in on Earth?