The tour company option is generally the most convenient, as this option includes roundtrip transportation, border crossing fees, and a guided tour for around $ 160 - 170 USD per person. (hannastables.com)
The discussion will address issues frequent in their works, such as border crossing, migration, cultural heritage and identity. (expochicago.com)
Yes, but this doesn't apply to the question, unless they also shut down the two official border crossing points. (politics.stackexchange.com)