oh gosh people, every president and his family travel. the last i knew the Obama family paid for her trip, which is how its always worked. The protection of the secret service is something we as a country extend to our leader(and his family) as a job benefit. a benefit they used to get for life, until GW Bush limited it during his term. The story was pulled for security reasons, probably no conspiracy there either. Twenty five SS agents getting into it with Oaxacan cartel thugs or whatever else probably would end poorly.
At least the president is actually at work, not something we can say for the last guy that took more vacations then most europeans
