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Situational awareness: "The oil price shot to its highest in four years on Tuesday, catapulted by upcoming U.S. sanctions on Iranian crude exports and the apparent reluctance of OPEC and Russia to raise output to offset the potential hit to global supply," Reuters reports.

Onto music ... at this moment 30 years ago, Public Enemy had just ascended the top of Billboard's hip-hop album charts with "It Takes a Nation of Millions to Hold Us Back." So that pioneering act provides today's intro tune...