tell me about it. bart had a broken track, and it caused delays and bus reroutes lasting days. amtrak suffered a serious derailment, and several passengers died. it was going twice its speed limit. and folks all over america are getting shot everyday for no apparent reason. when you drive you must assume that every driver carries a gun and is ready to shoot if you're embroiled in a road rage incident. that fear has now spilled over to waiting in line at the movies or getting a table at a restaurant. fashionable protective vests that have technology to sense danger will be the next wearable frenzy coming out of sillycon valley.