The problem: Answer a question about this article:
In 1939, the Bureau began compiling a custodial detention list with the names of those who would be taken into custody in the event of war with Axis nations. The majority of the names on the list belonged to Issei community leaders, as the FBI investigation built on an existing Naval Intelligence index that had focused on Japanese Americans in Hawaii and the West Coast, but many German and Italian nationals also found their way onto the secret list. Robert Shivers, head of the Honolulu office, obtained permission from Hoover to start detaining those on the list on December 7, 1941, while bombs were still falling over Pearl Harbor. Mass arrests and searches of homes (in most cases conducted without warrants) began a few hours after the attack, and over the next several weeks more than 5,500 Issei men were taken into FBI custody. On February 19, 1942, President Franklin Roosevelt issued Executive Order 9066, authorizing the removal of Japanese Americans from the West Coast. FBI Director Hoover opposed the subsequent mass removal and confinement of Japanese Americans authorized under Executive Order 9066, but Roosevelt prevailed. The vast majority went along with the subsequent exclusion orders, but in a handful of cases where Japanese Americans refused to obey the new military regulations, FBI agents handled their arrests. The Bureau continued surveillance on Japanese Americans throughout the war, conducting background checks on applicants for resettlement outside camp, and entering the camps (usually without the permission of War Relocation Authority officials) and grooming informants in order to monitor dissidents and "troublemakers." After the war, the FBI was assigned to protect returning Japanese Americans from attacks by hostile white communities.
When would the people on the custodial detention list be arrested?
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The answer: in the event of war with Axis

Problem: Please answer a question about the following article about Antenna (radio):
For horizontal propagation between transmitting and receiving antennas situated near the ground reasonably far from each other, the distances traveled by tne direct and reflected rays are nearly the same. There is almost no relative phase shift. If the emission is polarized vertically, the two fields (direct and reflected) add and there is maximum of received signal. If the signal is polarized horizontally, the two signals subtract and the received signal is largely cancelled. The vertical plane radiation patterns are shown in the image at right. With vertical polarization there is always a maximum for =0, horizontal propagation (left pattern). For horizontal polarization, there is cancellation at that angle. Note that the above formulae and these plots assume the ground as a perfect conductor. These plots of the radiation pattern correspond to a distance between the antenna and its image of 2.5. As the antenna height is increased, the number of lobes increases as well.
Where is the radiation patterns in the vertical plane shown?
A: image at right

Question: Read this and answer the question

An important element in Estonia's post-independence reorientation has been closer ties with the Nordic countries, especially Finland and Sweden. Indeed, Estonians consider themselves a Nordic people rather than Balts, based on their historical ties with Sweden, Denmark and particularly Finland. In December 1999, then Estonian foreign minister (and since 2006, president of Estonia) Toomas Hendrik Ilves delivered a speech entitled "Estonia as a Nordic Country" to the Swedish Institute for International Affairs. In 2003, the foreign ministry also hosted an exhibit called "Estonia: Nordic with a Twist".

What has been a major factor in the restoration of Estonia after winning their independence?
Answer: closer ties with the Nordic countries

Problem: Many traditional festivals and customs were observed in the old times, which included climbing the City Wall on January 16, bathing in Qing Xi on March 3, hill hiking on September 9 and others (the dates are in Chinese lunar calendar). Almost none of them, however, are still celebrated by modern Nanjingese.
How many of these old festivals are still celebrated by residents of Nanjing?
The answer is the following: Almost none of them

President Bush denied funding to the UNFPA. Over the course of the Bush Administration, a total of $244 million in Congressionally approved funding was blocked by the Executive Branch.
How had the UNFPA funding been initially approved?
Congressionally

Here is a question about this article: Another potential weapon system for anti-aircraft use is the laser. Although air planners have imagined lasers in combat since the late 1960s, only the most modern laser systems are currently reaching what could be considered "experimental usefulness". In particular the Tactical High Energy Laser can be used in the anti-aircraft and anti-missile role. If current developments continue, some[who?] believe it is reasonable to suggest that lasers will play a major role in air defence starting in the next ten years.
What is the answer to this question: When did personnel first start thinking about using lasers in combat?
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So...
the late 1960s