The NTSB requested the engineer's cell phone records from Verizon Wireless, and on Wednesday they received some of those records. While they do not yet know if he was texting at or near the time of the accident, the records do show that Sanchez was texting the day of the crash, including while he was on-duty for Metrolink.

In a written statement, a spokesman for the NTSB said:

"The safety board will correlate those records with other investigative information to determine as precisely as possible the exact times of those messages in relation to the engineer's operation of his train."

Also today, the California PUC is expected to meet at 10:30 PDT to discuss an emergency order banning cell phone use for rail workers. While many companies have such a rule in place, it is not a law, and this would close that loophole.

Michael Peevey, president of the California (PUC) also said he would ask the Federal Railroad Administration (FRA) to require Automatic Train Stop (ATS) systems immediately on all freight and passenger trains that share tracks in California. With ATS installed, trains automatically stop when required at signals.

Finally, Senator Dianne Feinstein (D-CA) is introducing legislation that would require ATS nationwide.

Obviously waaaay more to come.