18 U.S.C. § 112(a) prohibits assaults against foreign officials, official guests, and internationally protected persons (IPPs), and attacks upon the official premises, private accommodations, or means of transport of such persons. The provision also embraces attempts to commit such offenses. By its terms, § 112(a) neither requires proof of injury nor intent to injure a protected person. See United States v. Gan, 636 F.2d 28 (2d Cir. 1980), cert. denied, 451 U.S. 1020 (1981).
See all at: https://www.justice.gov/archives/jm/criminal-resource-manual-1624-substantive-offenses-assault-18-usc-112
Internationally protected person
(4) “Internationally protected person” means— (A) a Chief of State or the political equivalent, head of government, or Foreign Minister whenever such person is in a country other than his own and any member of his family accompanying him; or (B) any other representative, officer, employee, or agent of the United States Government, a foreign government, or international organization who at the time and place concerned is entitled pursuant to international law to special protection against attack upon his person, freedom, or dignity, and any member of his family then forming part of his household.
https://www.law.cornell.edu/definitions/uscode.php?height=800&def_id=18-USC-216574708-1528478296&term_occur=999&term_src=title:18:part:I:chapter:51:section:1116
Follow - https://www.merriam-webster.com/dictionary/follow
"to pursue in an effort to overtake"
"to watch steadily"
Pursue - https://www.merriam-webster.com/dictionary/pursue
Watch - https://www.merriam-webster.com/dictionary/watch
Birthday - https://www.merriam-webster.com/dictionary/birthday
Birth - https://www.merriam-webster.com/dictionary/birth
Date of Birth - the month, day, and year a person was born : BIRTH DATE
https://www.merriam-webster.com/dictionary/date%20of%20birth
Birth date - Birth date. the calendar date on which someone or something was born : DATE OF BIRTH https://www.merriam-webster.com/dictionary/birth%20date
Something - https://www.merriam-webster.com/dictionary/something
Indeterminate - https://www.merriam-webster.com/dictionary/indeterminate
Vague - https://www.merriam-webster.com/dictionary/vague
Hazy - https://www.merriam-webster.com/dictionary/hazy
Uncertain not clearly identified or defined- https://www.merriam-webster.com/dictionary/uncertain
Tertium quid refers to an unidentified third element that is in combination with two known ones. https://en.wikipedia.org/wiki/Tertium_quid
18 U.S.C. § 112(a) prohibits assaults against foreign officials, official guests, and internationally protected persons (IPPs), and attacks upon the official premises, private accommodations, or means of transport of such persons. The provision also embraces attempts to commit such offenses. By its terms, § 112(a) neither requires proof of injury nor intent to injure a protected person. See United States v. Gan, 636 F.2d 28 (2d Cir. 1980), cert. denied, 451 U.S. 1020 (1981).
See all at: https://www.justice.gov/archives/jm/criminal-resource-manual-1624-substantive-offenses-assault-18-usc-112
Internationally protected person
(4) “Internationally protected person” means— (A) a Chief of State or the political equivalent, head of government, or Foreign Minister whenever such person is in a country other than his own and any member of his family accompanying him; or (B) any other representative, officer, employee, or agent of the United States Government, a foreign government, or international organization who at the time and place concerned is entitled pursuant to international law to special protection against attack upon his person, freedom, or dignity, and any member of his family then forming part of his household.
https://www.law.cornell.edu/definitions/uscode.php?height=800&def_id=18-USC-216574708-1528478296&term_occur=999&term_src=title:18:part:I:chapter:51:section:1116
Follow - https://www.merriam-webster.com/dictionary/follow
"to pursue in an effort to overtake"
"to watch steadily"
Pursue - https://www.merriam-webster.com/dictionary/pursue
Watch - https://www.merriam-webster.com/dictionary/watch
Birthday - https://www.merriam-webster.com/dictionary/birthday
Birth - https://www.merriam-webster.com/dictionary/birth
Date of Birth - the month, day, and year a person was born : BIRTH DATE
https://www.merriam-webster.com/dictionary/date%20of%20birth
Birth date - Birth date. the calendar date on which someone or something was born : DATE OF BIRTH https://www.merriam-webster.com/dictionary/birth%20date
Something - https://www.merriam-webster.com/dictionary/something
Indeterminate - https://www.merriam-webster.com/dictionary/indeterminate
Vague - https://www.merriam-webster.com/dictionary/vague
Hazy - https://www.merriam-webster.com/dictionary/hazy
Uncertain not clearly identified or defined- https://www.merriam-webster.com/dictionary/uncertain
Tertium quid refers to an unidentified third element that is in combination with two known ones. https://en.wikipedia.org/wiki/Tertium_quid