Reporting now that the bus explosion appears to have been a suicide bomber. Explosive substances found so far at two sites.
I would warn anyone here in this country who takes the subway, train or bus to be on guard for any suspicious persons.
Have you heard if the BART system in San Francisco went on strike today? There were rumblings yesterday that today the BART would NOT be running. This is a case where I hope they DID strike. At least that would eliminate one transportation system from possible attacks, for today.