TV: Witness says massive cover-up of BP disaster in Gulf — Biggest fires ever in the world — More oil spilled than ever publicly admitted (VIDEO)

Advisory: Code 3 alert at giant Louisiana sinkhole — 10 ‘Very Long Profile’ seismic signals — Surface movement on west side

Attack at U.S. nuclear plant? Multiple shots fired at security officer — May have fled in boat — FBI sending team to site — “Many of the details I won’t be able to share”

Study: Boston, New England at Greatest Tsunami Risk in US — 12 quakes at edge of continental shelf in past year — 1929 tsunami killed 27, destroyed thousands of homes

Footage after ‘burp’ at giant sinkhole — Trees sinking straight into ground — Liquid shifting back and forth (VIDEO)

Report: Every U.S. nuclear plant has staff of workers checking eBay to buy old parts (AUDIO)

Emergency declared at U.S. nuclear plant after lightning strike — “Venting of Unit 1 primary containment” — ‘Normal’ radiation levels reported — NRC mobilizes response center

Giant Louisiana sinkhole swallows more land after ‘burp’ — Water continuing to move — “Indication that event is not over”

Official: Crime scene investigation at site of Texas blast — ATF bringing in explosives dogs — Determining if fire was intentionally set (VIDEO)

CBS: Up to 70 feared dead, hundreds injured after Texas explosion — 50-unit apartment building ripped apart — “Like a war zone” (VIDEO)

Authorities: ‘Coordinated act’ against California power substation and phone services (VIDEO)

Officials: Giant Louisiana sinkhole “likely to be permanent” — Thousands of years to fill in?

‘Medical emergency’ inside containment building at US nuclear plant — “Working in contaminated area when event occurred”

Sabotage: High-powered rifle used in attack on California power substation — Same perpetrators blamed for cutting AT&T fiberoptic cables — Objective was “shutting down the system” — FBI now leading investigation (VIDEO)

Bullet holes riddle key California power substation causing heavy damage — 10,000 gallon oil spill — Statewide Emergency Alert to conserve energy — 911 calls not working nearby

Book: Hijackers had airplane in nosedive heading for U.S. nuclear reactor — “A very, very scary situation” -Energy Official

Emergency declared after fire at U.S. nuclear plant — Lasted almost 30 minutes

Paper: 50 micro-earthquakes a day at giant Louisiana sinkhole — Blamed on ‘breaking rock’ underground — Sidewall of cavern still collapsing

Multiple nuclear plants now on ‘Heightened Awareness’ after Boston Marathon bombings — Reactors in New York, New Hampshire, Massachusetts affected

Update: Boston police say 3rd explosion at JFK library… “Understand this is an ongoing event” — “Not related to marathon attack” says library spokeswoman (VIDEO)

OT: Multiple explosions near Boston Marathon finish line — 3 reported dead — “Somebody’s leg flew by my head” — Blood-stained sidewalks (PHOTO)

Photo: 22-foot gash in Arkansas oil pipeline — “Substantially larger” than thought -Official