As a general rule, international travel in pursuit of official CU activities should not involve export-controlled equipment, materials, software or technology (together "items") without first consulting the Office of Export Contorls (OEC). If you are unsure as to whether your item is export-controlled, OEC can assist in identifying it, as well as advising on how to comply with export controls in a manner that facilitates your research goals.
Traveling internationally with computers, tablets, smart phones or other electronic storage devices is generally allowed, but depending on the technical capabilities and the destination country, may require an export license.
You should not take with you ANY of the following without first obtaining specific advice:
Beyond export laws, certain countries are known for accessing files upon entry, so you should be extremely careful about any proprietary, patentable, or sensitive information that may be stored on your device. This includes material that might be perceived as pornographic, or culturally inappropriate. Department of Homeland Security personnel may also decide to inspect your laptop upon return to the US, in which case everything on the device is subject to inspection. In the United States, Customs and Border Protection may take possession of those items for various periods of time, and even permanently depending upon the circumstances. The inspectors in other countries might do so as well.
If making a presentation is the sole reason for taking your laptop, consider instead taking an external memory storage device containing only the presentation, or storing the presentation on a cloud-based server and using a locally-provided computer. If you are using a laptop for other purposes (such as email), you should consider taking a “clean” computer that does not include the restricted software, data, or other sensitive information.
Note Regarding Encryption
Encrypting your files, or the complete hard disk, is generally considered a best practice for data security. However, doing so when travelling internationally can create an additional set of issues. Some countries restrict the import of encrypted devices, and US regulations prohibit the export of an encrypted device to embargoed countries.* That is another reason to consider travelling with a "clean" device with only minimal software and no restricted data.
If you have questions, please contact the Office of Export Controls.