Transportation officials shut down a Van Nuys-based bus charter company that operated a bus that crashed early Friday morning, leaving 6 dead and 7 critically injured. The bus was headed to Los Angeles from Mexico when it crashed outside of Phoenix. Tierra Santa, Inc. was not government regulated and had a poor safety history, according to the LA Times. “It is absolutely essential that unsafe carriers like this one be taken off the road,” Transportation Secretary Ray LaHood said.