I would tell her not to worry too much.
Please know and tell her that this is not Islam related.
Thailand will be fine as will bangkok. her son is safe.
Most likely her son and crew will fly to singapore to "wait things out"
But know this, The Thais revere their King...and the King will never allow bloodshed.
It will not happen.
Most likely this will pass.
Please be not afraid and tell your friend at work, her son is safe.
Yeah is the same King who celebrate his 60 year as king right now?????