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A Harrisburg man is accused of pointing a gun at a a group of teenagers in traffic in Dauphin County.

>> brown: then, science correspondent miles o'brien looks at the elusive search for accurate predictions of where and when earthquakes will strike. >> using japan's uniquely dense network of seismometers, researchers have created a detailed map of previous earthquakes. it is a very clear view in the rear view mirror, but not a crystal ball. >> warner: and betty ann bowser reports on the questions raised about a routine test for prostate cancer. >> brown: that's all ahead on tonight's "newshour." major funding for the pbs newshour has been provided by: >> computing surrounds us. somet...

the opportunity to determine their own destiny in a new and democratic libya. >> warner: plus, we analyze president obama's approach to intervening in libya in a supporting, but not leading role in the nato mission. >> brown: then, science correspondent miles o'brien looks at the elusive search for accurate predictions of where and when earthquakes will strike. >> using japan's uniquely dense network of seismometers, researchers have created a detailed map of previous earthquakes. it is a very clear view in the rear view mirror, but not a crystal ball. >> warner: and betty ann bowser...

>> brown: then, science correspondent miles o'brien looks at the elusive search for accurate predictions of where and when earthquakes will strike. >> using japan's uniquely dense network of seismometers, researchers have created a detailed map of previous earthquakes. it is a very clear view in the rear view mirror, but not a crystal ball. >> warner: and betty ann bowser reports on the questions raised about a routine test for prostate cancer. >> brown: that's all ahead on tonight's "newshour." major funding for the pbs newshour has been provided by: >> computing surrounds us. somet...