Within the U.S. Constitution is the border exception to the 4th  Amendment which articulates a sovereigns rights to protect itself by stopping and examining persons and property crossing into this country. See also United States v Ramsey, 431 U.S. 606 (1977).  Read the Supreme Court decision ofRiley v. California and share your thoughts on the border exception with respect to warrantless searches of electronic devices (which includes cellphones and computers). 2 paragraphs.