2003, the last major blackout in the United States had been on the west coast in 1996, and more recently an outage has struck in the San Diego area. Dagle says that the 2003 blackout stemmed from a combination of bad vegetation management — the first three lines tripped after sagging into trees but were

2003, the last major blackout in the United States had been on the west coast in 1996, and more recently an outage has struck in the San Diego area. Dagle says that the 2003 blackout stemmed from a combination of bad vegetation management — the first three lines tripped after sagging into trees but were

003, the last major blackout in t=e United States had been on the west coast in 1996, and more recently an o=tage has struck in the San Diego area. Dagle says that the 2003 =lackout stemmed from a combination of bad vegetation management — the fi=st three lines tripped after sagging into trees but wer