New explosion at beleagured Japanese nuclear plant has dire implications

Major US news agencies reporting a hydrogen explosion at Fukushima Dai-ichi No. 2 may have breached the containment vessel. Tepco, the Japanese company that owns this plant has evacuated operators from the area.  There are reports of elevated radiation levels in the area near the plant.
This plant just had its license extended in February.  South Texas Plant (STP) is in the process of extending its license for its 22 year old units 1 and 2.
Check national news sources for breaking news.