June 22 DC Metro subway trains collide - 9 dead, 80 injured

Timeline:
June 18-24: Gov. Sanford missing/crying in Argentina
June 21: 'Impact' Part 1 on ABC; Prince William birthday
June 22: DC Metro Red Line trains in collision
June 23: US Moon probes (LRO/LCROSS) reach Moon
June 24: Gov. Sanford reveals Argentine affair
June 25: Death of Michael Jackson & Farahh Fawcett

'Metro' means 'meter' in Spanish, Italian, Portuguese, etc. The meter is historically defined as 1/10,000,000 of the distance between the North Pole and the equator through Paris, or in other words the Paris Meridian between the North Pole and the equator. The Paris Meridian is also the 'Rose Line' (an esoteric concept popularized by The Da Vinci Code) i.e. a 'Red Line'...

DC Metro Red Line = French/Columbian Rose Line

...traditionally implying the Blood Royal/Sangraal or the Marian/Columbian Bloodline of the Holy Grail.

In Bloodline of the Holy Grail Laurence Gardner writes of the House of Stuart, the royal bloodline to which Princess Diana and her children belong (pp. 344-5):