R&B star Rihanna still secures her place at number one this week and there are no new surprises as three singles stay at their previous places. Beyonce and Shakira’s Beautiful Liar still remain at number three and Maroon 5 doesn’t...

If a chemical or biological contaminant were accidentally or intentionally introduced into a drinking water source in the United States, i.e. hundreds of thousands of bodies of surface water, — can you imagine what threat it can pose to the...