I see this notice in the TextSecure README:
The U.S. Government Department of Commerce, Bureau of Industry and Security (BIS), has classified this software as Export Commodity Control Number (ECCN) 5D002.C.1, which includes information security software using or performing cryptographic functions with asymmetric algorithms. The form and manner of this distribution makes it eligible for export under the License Exception ENC Technology Software Unrestricted (TSU) exception (see the BIS Export Administration Regulations, Section 740.13) for both object code and source code.
Why does the US Govt feel this software is "eligible for export"? Does that mean it has a circumvention available?
TextSecure is just an example. More generally, on what basis do govts allow export of encryption software? If a govt allows some cryptography software to be exported, does it imply that it is not stong enough?